"exercise constantly" is correct and usable in written English
You could use it in a sentence such as "If you want to stay healthy, it is important to exercise constantly."
Why only thin? "They take care of themselves, they exercise constantly, they have their faces, stomachs and hips done.
The generation of competitive advantage in dynamic contexts brings the skills to exercise constantly learning ability: the dynamic behavior of some wine firms is explicable with their ability to adopt a managerial logic of seeking for distinctive features concerning the technology and the market.
Don't do exercise constantly.
And, of course, she still exercises constantly.
Chris is extremely health-conscious and exercises constantly; he runs 10 miles during his lunch break alone, and considers a 15 km run to be "light" exercise.
Extremely health-conscious, he exercises constantly and eats only healthy foods, and hopes to be the first human being to live 150 years.
In any event, on this view, Latin American philosophers will continue to face the IDP "unless we create a genuine critical dialogue among ourselves and simultaneously exercise a constantly renewed memory of past dialogues" (2006, p. 210).
"This is an exercise that constantly centers people," she said.
I love my free life now that doesn't revolve around food, exercise, and constantly hating myself.
