Grammar fix
physical activity
exercise
any movement of your body that uses energy, like walking, playing sports, or doing exercise.
Hear it in context
Notice where the phrase sounds natural.
Doctors recommend at least 30 minutes of physical activity each day to stay healthy.
In my opinion, schools should encourage more physical activity because it helps students concentrate better in class.
Fix the pattern
One small grammar move makes it sound right.
Not: I do many physical activities every day.
Say: I get a lot of physical activity every day.
In this health sense 'physical activity' is uncountable; 'exercise' is more natural in speech.
Which sounds natural?
Tap the one a native speaker would say.
'Bodily exertion' is clinical; in speech natives say 'exercise' / 'get active'.
Build natural chunks
Words that usually travel with it.
physical activity
- physical activity
- regular
- moderate
- get some exercise