exercisenoun
They recommend doing at least 45 minutes of aerobic exercise three times a week.
Regular physical activity, and especially aerobic exercise, can help you fall asleep faster.
Walking is the aerobic exercise most often recommended by fitness experts because it can be done virtually anytime, anywhere.

SMART Vocabulary: related words and phrases

Exercising & training
active recovery
aerial yoga
aerobic
aerobicize
Anti-Gravity yoga
gym rat
health spa
heavy bag
HIIT
hyperextension
jogger
pump ironidiom
rope climbing
rowing machine
run on the spotphrase
Russian twist
shoulder press
slimmer
step aerobics
weightlifting