What Is the Best Time of Day to Exercise?
Morning, Afternoon, or Evening? Here's What Really Matters After 50
HEALTH
Coach Marcus Jones
8/4/202614 min read
What time should you exercise?
First thing in the morning?
During your lunch break?
After work?
In the evening?
If you've spent any time on social media, you've probably heard somebody confidently tell you:
“Morning workouts burn more fat.”
Or:
“Afternoon workouts are better because you're stronger.”
Or:
“Never exercise at night because you won't sleep.”
So who's right?
Here's the answer that may surprise you:
THERE IS NO SINGLE BEST TIME TO EXERCISE FOR EVERYONE.
Research suggests that time of day can influence certain aspects of exercise performance and possibly some health outcomes.
But for most people, especially those of us focused on healthy aging after 50, there is something much more important:
CONSISTENCY.
The best workout time isn't necessarily the one that looks best in a research study.
It's the time that allows YOU to exercise safely, effectively, and consistently.
Let's break it down.
QUICK ANSWER: WHAT IS THE BEST TIME OF DAY TO EXERCISE?
For most people, there isn't one universally superior time.
The American Heart Association says the best time depends on what works for you because many of the benefits of physical activity depend on consistency.
[Source 1]
Some research suggests that physical performance may vary throughout the day.
For example, a systematic review and meta-analysis found that endurance performance was higher during late-afternoon or evening testing than during morning testing.
[Source 2]
Other studies have investigated whether morning or evening exercise produces different effects on weight loss, blood pressure, blood glucose, sleep, and other outcomes.
But the research does NOT support a simple rule that everyone should exercise at one particular time.
That's why my answer is:
EXERCISE WHEN YOU CAN CONSISTENTLY SHOW UP.
If that's 5:30 in the morning, great.
If that's noon, great.
If that's 6:00 in the evening, great.
The workout you consistently perform is going to do you more good than the scientifically “perfect” workout time that you repeatedly miss.
WHY I LIKE MORNING WORKOUTS
Personally, I'm a morning workout person.
I like getting up early and getting my exercise done before the rest of the day gets busy.
There's something about starting the day knowing:
I ALREADY DID SOMETHING GOOD FOR MY BODY.
The phone hasn't started ringing.
Emails haven't taken over.
Appointments haven't gotten in the way.
Life hasn't had time to give me 15 reasons to skip my workout.
I get up.
I get moving.
I get it done.
For me, that works.
But here's the important part:
WHAT WORKS FOR ME MAY NOT WORK FOR YOU.
If getting up at 5:00 a.m. means you're only sleeping five hours per night, I'm not going to tell you that sacrificing adequate sleep just so you can call yourself a “morning workout person” is automatically healthier.
Your exercise routine has to fit into your overall health strategy.
THE ADVANTAGE OF MORNING EXERCISE: FEWER DISTRACTIONS
One of the biggest practical advantages of morning exercise has nothing to do with metabolism.
It has to do with:
LIFE.
Think about how many things can happen between the time you wake up and 5:00 p.m.
A meeting runs late.
Your boss needs something.
Your spouse needs something.
Your children need something.
Traffic gets bad.
You're tired.
Dinner needs to be made.
Someone calls.
Something breaks.
And suddenly the workout you planned for 6:00 p.m. becomes:
“I'll do it tomorrow.”
Morning exercise can help some people avoid those interruptions.
That's not a metabolic advantage.
It's a:
CONSISTENCY ADVANTAGE.
And consistency matters.
MORNING EXERCISE CAN BECOME PART OF YOUR ROUTINE
Habits become easier when they have a predictable place in your day.
The American Heart Association recommends finding a convenient time and place for physical activity and suggests exercising at a consistent time when possible so it becomes part of your routine.
[Source 3]
That's powerful.
Because eventually exercise stops becoming something you constantly negotiate with yourself about.
You don't wake up asking:
“Do I feel like brushing my teeth today?”
Hopefully not.
You just do it.
That's where I want exercise to eventually go.
PART OF YOUR LIFE.
Not something you only do when motivation shows up.
BUT MORNING EXERCISE ISN'T MAGIC
This is where social media sometimes gets ahead of the science.
You may hear:
“You HAVE to exercise in the morning to lose weight.”
No.
A randomized controlled trial compared morning exercise between 6:00 and 9:00 a.m. with evening exercise between 4:00 and 7:00 p.m. in previously inactive adults with overweight or obesity.
Both groups exercised approximately 250 minutes per week for 12 weeks.
What happened?
BOTH GROUPS LOST WEIGHT.
Both groups also improved cardiorespiratory fitness.
[Source 4]
The researchers did not find evidence that one exercise time was clearly superior for weight loss.
So if your only opportunity to exercise is after work, don't think:
“It's too late. I missed the fat-burning window.”
GO EXERCISE.
WHAT ABOUT FASTED MORNING CARDIO?
This comes up constantly.
Some people believe that exercising before breakfast automatically produces greater long-term fat loss because your body may rely more heavily on fat during that particular exercise session.
But burning more fat as fuel during one workout does not automatically mean you'll lose more body fat over weeks or months.
Long-term body-fat changes depend on a much larger picture that includes:
Overall calorie intake
Overall energy expenditure
Physical activity
Nutrition
Exercise consistency
Body composition
Sleep
Genetics
Medical conditions
Medications
Other individual factors
So don't turn fasted exercise into a magic formula.
Some people feel great exercising before breakfast.
Others feel:
Weak.
Lightheaded.
Nauseated.
Sluggish.
If you have diabetes, take blood-glucose-lowering medication, have problems with low blood sugar, or have other medical concerns, discuss fasted exercise with your healthcare professional.
FASTED EXERCISE IS AN OPTION FOR SOME PEOPLE.
It is not a requirement for everybody.
AFTERNOON EXERCISE HAS ADVANTAGES TOO
Maybe you're not a morning person.
That's okay.
Afternoon exercise may actually feel better for some people.
Your body temperature, alertness, coordination, and physical readiness change throughout the day.
Research examining morning versus late-afternoon or evening exercise has found differences in certain performance measures.
A 2023 systematic review and meta-analysis examined 31 studies comparing cardiorespiratory responses and endurance performance at different times of day.
Researchers found:
ENDURANCE PERFORMANCE WAS GENERALLY HIGHER LATER IN THE DAY.
[Source 2]
That doesn't mean everyone performs better at 5:00 p.m.
And it doesn't mean morning workouts are inferior.
But it does demonstrate something important:
YOUR BODY HAS DAILY RHYTHMS.
Time of day can influence performance.
YOU MAY FEEL STRONGER LATER IN THE DAY
Have you ever noticed that the weights feel heavier first thing in the morning?
Then later in the afternoon you feel ready to go?
There may be physiological reasons for that.
Body temperature generally rises throughout the day, and neuromuscular performance may vary according to circadian rhythms.
For some people, that can translate into feeling:
Warmer
More flexible
Stronger
More coordinated
More prepared for intense exercise
later in the day.
That's one reason athletes sometimes care about exercise timing.
If you're trying to maximize performance, timing may become more relevant.
But if your primary goal is:
HEALTHY AGING
then consistency still deserves priority.
WHAT ABOUT LUNCHTIME EXERCISE?
I think lunchtime exercise is highly underrated.
Maybe you can't work out at 6:00 a.m.
And by 6:00 p.m., family responsibilities take over.
What about lunch?
A 20- or 30-minute walk can become part of your exercise routine.
The American Heart Association specifically recommends finding ways to fit walking into the morning, lunchtime, or evening depending on your schedule.
[Source 5]
Imagine replacing 30 minutes of scrolling on your phone during lunch with:
30 MINUTES OF WALKING.
Five days per week.
That's:
150 MINUTES.
You've just reached the basic weekly moderate-intensity aerobic activity target if those walks are performed at an appropriate moderate intensity.
That's how simple this can become.
YOU DON'T HAVE TO EXERCISE ALL AT ONCE
Here's another excuse we can eliminate.
“I don't have 30 minutes.”
Okay.
Do you have 10?
Federal physical-activity guidance no longer requires aerobic activity to occur in minimum 10-minute bouts for it to count toward the overall activity target.
Movement adds up.
[Source 6]
You might walk:
10 minutes in the morning.
10 minutes at lunch.
10 minutes after dinner.
That's 30 minutes of movement accumulated across the day.
Don't allow:
“I DON'T HAVE ENOUGH TIME”
to become:
“I DID NOTHING.”
Something is better than nothing.
WHAT ABOUT EVENING EXERCISE?
Some people love exercising after work.
It becomes their way of releasing the stress of the day.
I understand that.
You leave work.
You go to the gym.
You lift.
Walk.
Cycle.
Swim.
Take a fitness class.
And mentally transition from:
WORK MODE
to:
LIFE MODE.
There's absolutely nothing inherently wrong with exercising in the evening.
For some people, it's the most realistic time.
And remember:
REALISTIC BEATS PERFECT.
DOES EXERCISING AT NIGHT RUIN YOUR SLEEP?
Not necessarily.
This is another statement that's often presented too broadly.
Some people can exercise in the evening and sleep perfectly well.
Others find that vigorous exercise close to bedtime leaves them feeling too stimulated to fall asleep easily.
The American Heart Association recommends paying attention to your individual response. If late exercise interferes with falling asleep, move the workout earlier or consider less intense activity later in the evening.
[Source 1]
That's sensible.
Don't follow somebody else's rule.
PAY ATTENTION TO YOUR BODY.
If you exercise at 8:00 p.m. and sleep wonderfully:
Great.
If you exercise at 8:00 p.m. and you're staring at the ceiling at midnight:
Maybe adjust your schedule.
YOUR SLEEP IS MORE IMPORTANT THAN WINNING THE MORNING-WORKOUT CONTEST
This one matters.
Suppose someone tells you:
“The healthiest people exercise at 5:00 a.m.”
So you decide:
“I'm getting up at 4:30!”
There's just one problem.
You don't go to bed until midnight.
Now you're exercising early...
but you're chronically sleep deprived.
That's not the goal.
As we discussed yesterday, adults generally still need adequate sleep as they get older.
Exercise should work WITH your healthy lifestyle.
Not against it.
DON'T ROB SLEEP TO PAY EXERCISE.
Find a schedule that allows you to do both.
WHAT ABOUT EXERCISING FOR WEIGHT LOSS?
This is where people want a definitive answer.
“Coach, what time burns the most fat?”
Here's what I'd rather you focus on:
HOW MUCH ARE YOU MOVING ACROSS THE WEEK?
Current federal guidance recommends adults work toward:
150 TO 300 MINUTES
of moderate-intensity aerobic activity each week,
or:
75 TO 150 MINUTES
of vigorous-intensity activity,
or an equivalent combination.
Adults should also perform muscle-strengthening activity on at least:
TWO DAYS EACH WEEK.
[Source 6]
Notice what's missing?
It doesn't say:
“Only between 5:00 and 8:00 a.m.”
The total amount and consistency of physical activity matter tremendously.
WHAT ABOUT EXERCISING FOR BLOOD SUGAR?
This is an area where timing may become more interesting.
Physical activity can influence blood glucose, and activity performed after meals may be useful for some people.
Even something as simple as walking after eating can increase muscle activity and affect glucose handling.
But if you have diabetes or take medications that affect blood sugar, exercise timing can interact with:
Meals
Insulin
Medication
Exercise intensity
Exercise duration
That means the “best” time may need to be individualized.
If that's you, work with your healthcare professional to determine an appropriate exercise strategy.
Don't copy someone else's diabetes exercise routine from social media.
WHAT ABOUT EXERCISING FOR BLOOD PRESSURE?
Exercise is an important component of cardiovascular health.
But blood pressure also changes naturally throughout the day, and medications may affect your response to exercise.
If you have:
Uncontrolled high blood pressure
Heart disease
A history of heart attack
Heart rhythm problems
Significant cardiovascular symptoms
Other medical concerns
your healthcare professional may have specific recommendations about:
Exercise intensity
Timing
Medications
Warm-up
Cool-down
Heart-rate monitoring
Follow individualized medical advice.
THE GOAL IS TO EXERCISE SMART.
WHAT IF YOU'RE OVER 50 AND JUST STARTING?
Don't worry about optimizing exercise timing.
Seriously.
Your first question should not be:
“What is the perfect circadian window for maximum exercise adaptation?”
Your first question should be:
“WHEN CAN I REALISTICALLY MOVE MY BODY?”
If that's 7:00 a.m.:
Start there.
If that's noon:
Start there.
If that's after dinner:
Start there.
The American Heart Association recommends starting slowly and gradually increasing activity, particularly for people who have been sedentary.
[Source 3]
You don't need optimization yet.
YOU NEED A HABIT.
Build the habit first.
Optimize later.
CONSISTENCY BEATS INTENSITY WITHOUT DISCIPLINE
You know what doesn't impress me?
Somebody doing an incredible workout on January 2nd...
and disappearing by February.
I'm much more interested in the person who does:
30 minutes.
Again.
And again.
And again.
Week after week.
Month after month.
Year after year.
That's how health is built.
CONSISTENCY COMPOUNDS.
I've said it about money.
I've said it about business.
And I'll say it about fitness.
Small actions performed consistently can produce meaningful results over time.
SCHEDULE YOUR EXERCISE LIKE AN APPOINTMENT
Here's something practical.
Put your workouts on your calendar.
Don't say:
“I'll exercise sometime tomorrow.”
What does “sometime” mean?
Instead:
“I'm walking from 7:00 to 7:30 a.m.”
Or:
“I'm strength training at noon.”
Or:
“I'm going to the gym at 5:30 p.m.”
The American Heart Association recommends making physical activity part of your regular routine and finding a convenient time and place.
[Source 3]
Treat exercise like something important.
Because:
IT IS.
KNOW YOURSELF
Some people are naturally early risers.
Others aren't.
Some people have the most energy at noon.
Others come alive in the evening.
Some people need to exercise before their day starts because once life gets moving, exercise isn't happening.
Others have family or work schedules that make morning exercise impossible.
Don't build your fitness routine around:
SOMEBODY ELSE'S LIFE.
Build it around:
YOUR LIFE.
The best routine is one you can actually maintain.
TRY DIFFERENT TIMES
If you're unsure when you perform best, experiment.
Try morning workouts for a week or two.
Pay attention to:
Energy.
Strength.
Mood.
Sleep.
Consistency.
Then try afternoon or early-evening workouts.
Ask yourself:
When do I feel strongest?
When am I most likely to show up?
When do I enjoy exercising most?
When does exercise interfere least with my responsibilities?
When does exercise support my sleep?
You're collecting information about yourself.
YOUR BODY GIVES YOU DATA.
Pay attention.
MY 7 RULES FOR CHOOSING YOUR BEST EXERCISE TIME
If you remember nothing else from today's article, remember these:
1. CONSISTENCY COMES FIRST
The best workout time is usually the time you can repeatedly maintain.
2. MORNING EXERCISE ISN'T MAGIC
It's convenient for many people, but you don't have to exercise before sunrise to get results.
3. AFTERNOON PERFORMANCE MAY BE BETTER FOR SOME PEOPLE
Research suggests certain endurance and physical-performance measures may peak later in the day.
4. EVENING EXERCISE CAN STILL BE EFFECTIVE
If it doesn't interfere with your sleep and fits your schedule, use it.
5. DON'T SACRIFICE SLEEP TO EXERCISE EARLY
Both exercise and recovery matter.
6. MATCH YOUR EXERCISE TIME TO YOUR HEALTH NEEDS
Medical conditions, medications, meals, blood glucose, blood pressure, and other factors may affect the best strategy for you.
7. STOP OVERTHINKING AND START MOVING
The perfect time doesn't matter if you never exercise.
WHAT TIME DO I THINK YOU SHOULD EXERCISE?
Here's my answer:
THE TIME YOU'LL ACTUALLY DO IT.
I personally enjoy exercising early.
That's my routine.
It works for me.
I like starting my day knowing I've already invested in my health and also completed the hardest part of my day.
But I'm not going to tell you that you need to copy me.
If you're consistently exercising at 4:00 p.m.:
Keep going.
If you're consistently walking after dinner:
Keep going.
If lunchtime is your only opening:
Use it.
If you're exercising in the evening and sleeping well:
Keep moving.
Because at the end of the day, the biggest mistake isn't choosing morning instead of afternoon.
The biggest mistake is:
NOT MOVING AT ALL.
DON'T CHASE PERFECT. BUILD CONSISTENT.
We live in an age of optimization.
Everybody wants:
The perfect workout.
The perfect meal.
The perfect supplement.
The perfect heart rate.
The perfect exercise time.
But sometimes all that optimization becomes another excuse to delay action.
You don't need the perfect workout time to take a walk.
You don't need a laboratory to tell you when to pick up some weights.
You don't need to wait until Monday.
You need to:
START.
Then keep showing up.
Your ideal exercise time may change as your life changes.
Retirement may change your schedule.
Work may change your schedule.
Family may change your schedule.
Your health may change your schedule.
That's okay.
Adapt.
The goal isn't to protect a particular workout time.
THE GOAL IS TO PROTECT THE HABIT OF MOVING.
Morning.
Noon.
Afternoon.
Evening.
Move.
Strengthen.
Stay active.
Stay consistent.
And remember:
DON'T JUST GET OLDER. GET BETTER AT IT.
Faith. Health. Wealth. Build All Three.
— Coach Marcus Jones
Medical & Exercise Disclaimer
This article is provided for general educational and informational purposes only. It is not intended to diagnose, treat, cure, or prevent any disease or medical condition and should not be considered medical advice, physical therapy, rehabilitation guidance, or an individualized exercise prescription. Exercise timing, intensity, duration, and type should be individualized based on current fitness level, age, medical history, medications, sleep, nutrition, mobility, balance, cardiovascular health, blood pressure, blood glucose, and other individual factors. Consult your physician or another qualified healthcare professional before beginning or substantially changing an exercise program, particularly if you have been inactive; have cardiovascular, pulmonary, metabolic, neurological, orthopedic, balance, or other medical conditions; take medications that affect heart rate, blood pressure, or blood glucose; or have been advised to restrict physical activity. People with diabetes should discuss the relationship among exercise, meals, medications, and blood glucose with their healthcare team. Stop exercising and seek prompt medical attention for concerning symptoms such as chest pain, fainting, severe or unusual shortness of breath, sudden weakness, or other symptoms that may indicate a medical emergency. Never disregard professional medical advice or delay seeking medical care because of information contained in this article.
Source Annotations & Further Reading
[Source 1] American Heart Association — When Is the Best Time of Day to Work Out? Reviewed January 19, 2024.
The American Heart Association states that there is no single correct time of day to exercise and emphasizes that the best time depends largely on what allows an individual to exercise consistently. It also notes that people who find late-evening exercise interferes with sleep may benefit from exercising earlier or choosing less intense activity later in the day.
[Source 2] Seo DY, et al. Time-of-Day Effects of Exercise on Cardiorespiratory Responses and Endurance Performance: A Systematic Review and Meta-Analysis. Journal of Strength and Conditioning Research. 2023. PMID: 37026733.
This systematic review and meta-analysis included 31 studies examining morning versus late-afternoon or evening exercise. Researchers found that oxygen consumption during exercise did not differ significantly by time of day, while heart rate at certain exercise intensities and endurance performance were higher later in the day. The findings suggest that circadian rhythms may influence some aspects of exercise performance but do not establish that everyone should exercise in the afternoon or evening.
[Source 3] American Heart Association — Getting Started: Tips for Long-Term Exercise Success. Reviewed February 8, 2024.
The American Heart Association recommends starting slowly, gradually increasing activity, finding a convenient time and place to exercise, and making physical activity a regular part of the daily routine. The AHA also emphasizes flexibility: when a planned exercise session is missed, activity can be incorporated elsewhere in the day.
[Source 4] Willis EA, Creasy SA, Honas JJ, Melanson EL, Donnelly JE. The Efficacy of Morning Versus Evening Exercise for Weight Loss: A Randomized Controlled Trial. Obesity. 2023. PMID: 36502286.
In this randomized controlled trial, 100 inactive adults with overweight or obesity were assigned to morning exercise, evening exercise, or a control group. Both exercise groups were prescribed 250 minutes per week of aerobic exercise for 12 weeks. Both morning and evening groups lost weight and improved cardiorespiratory fitness. The study did not establish a clearly superior exercise time for weight loss.
[Source 5] American Heart Association — Fit in Walking: Morning, Noon or Night. Reviewed January 19, 2024.
The AHA emphasizes that walking can be incorporated at different times throughout the day depending on an individual's schedule. Morning walks, lunchtime activity, after-work walks, and shorter bouts spread across the day can all contribute to total physical activity.
[Source 6] U.S. Department of Health and Human Services, Office of Disease Prevention and Health Promotion — Physical Activity Guidelines for Americans, 2nd Edition.
Federal guidelines recommend that adults accumulate approximately 150 to 300 minutes of moderate-intensity aerobic activity per week, 75 to 150 minutes of vigorous activity, or an equivalent combination. Adults should also perform muscle-strengthening activities involving the major muscle groups on at least two days per week. The guidelines emphasize moving more and sitting less and recognize that physical activity does not need to occur in minimum 10-minute bouts to provide benefit.
Week 2 — Metabolism, Energy & Weight
Day 1: Does Your Metabolism Really Slow Down as You Get Older?
Day 2: Why Do You Feel More Tired as You Get Older?
Day 3: What Is the Best Time of Day to Exercise?
Day 4: Is Walking Enough Exercise After 50?
Day 5: How Many Steps Should Adults Over 50 Get Each Day?
Day 6: What Is the Fat-Burning Heart Rate Zone?
Day 7: Why Is Maintaining Muscle Important for Your Metabolism?
Coach Marcus Jones 90-Day Faith, Health & Wealth Series, Week 2 — Metabolism, Energy & Weight, Day 3 — What Is the Best Time of Day to Exercise?