When time is tight, exercise is the first thing to go. It looks like a luxury next to a launch, a draft or a family dinner. But a business built in evenings and early mornings runs on one body, and that body has to keep going for months. Treat movement as part of the work schedule, not a reward for finishing it.
What the Guidelines Say
The US Centers for Disease Control and Prevention (CDC) publishes physical activity guidelines for adults. As of October 2026, the baseline is 150 minutes a week of moderate-intensity aerobic activity, with 30 minutes a day, five days a week given as an example. The CDC says 75 minutes of vigorous activity can substitute, or you can combine the two. It also recommends muscle-strengthening activity on at least two days a week, covering all major muscle groups. The CDC describes physical activity as supporting both physical and mental health, and says going beyond the baseline brings even more health benefits.
That is a target, not a test. If you are starting from zero, any plan you can repeat beats a perfect plan you drop in week two. Check with a doctor before beginning a new routine if you have a health condition or concerns.
Make It a Block, Not a Wish
A side business already competes with a day job and family for the same hours. So give exercise a slot, the same way you would for writing. If you use time blocking around a day job, put movement on the calendar first and fit work around it, not the other way around.
- Attach it to something fixed. A walk right after lunch or before your evening work session needs no new decision each day.
- Shrink the minimum. Decide the “bad day” version in advance, such as a ten-minute walk, so skipping is never all-or-nothing.
- Count it as work time. A walk is a good place to think through a headline or an email, and it clears your head before a focused hour.
- Protect it like a client call. You would not cancel on a customer because you felt tired; give your own plan the same respect.
Watch for the Trade-Off With Sleep
Cutting sleep to fit in a workout, or the other way around, usually backfires. If the choice is between a 5 a.m. run on five hours of sleep and a calmer day, read our post on protecting your sleep first. If you notice constant exhaustion, low mood or dread about work, that is worth raising with a doctor or counselor, not something to push through.
Do this today
Open your calendar and block three 20-minute slots this week for a walk or other movement you enjoy. Put each one next to something you already do daily, such as right after dinner. Set a ten-minute fallback for the days you are wiped out.
