Work. It. Out!
The CDC says all adults need at least 150 minutes of moderate intensity aerobic activity each week, in addition to muscle strengthening exercises at least 2 days per week that work all the major muscle groups.
Unfortunately, shopping, cooking, vacuuming, and doing the laundry don’t count in this tally. They're considered light or (low) intensity.....but pushing a lawn mower – not riding, pushing -- and raking leaves do. They're definitely moderately intensive.
Chewing is also hyper-low intensity.
Moderate intensity means you get your heart rate up and you're working hard enough to break a sweat. You can talk.... but you can't sing.....if you ever could.
Vigorous activity means you step it up a bit. You're breathing hard and fast...You may be able to get a few words out- but you certainly can't carry on a conversation.
You're working twice as hard so Instead of walking, you jog or run.
You decide what to do -- just do enough of it. And keep challenging yourself.