Regular body exercise keeps _ in tone and strengthens the_ .

*the first answer can't be body, as that is part of the exercise itself

Regular body exercise keeps body in tone and strengthens the muscles .

Explanation:

That practicing physical exercises can have many health benefits and considerably improve the proper functioning of the body, that everyone knows, right? However, the benefits of physical activity are only tangible and truly realized in everyday life when we take the practice seriously, ensuring a regular weekly frequency, because only regular exercise keeps the body in tone and strengthens the muscles.

The practice of physical activity can not be viewed as a hobby, but as a constant habit. Just as we eat, drink water and brush our teeth every day, we must make physical activity regular for the benefits to be effective.

for the points