My classmate is bigger than before, and is full of high spirits. Is he healthier than before?

I recently met a classmate. He is a deputy general manager now and is managing more than 200 people. He is 28 year old. He often drinks alcohol with clients and often gets drunk. His body is apparently bigger than I met him 4 years ago. His face is big so his eyes look small. I feel that he looks much "stronger" than before, and his mental outlook looks great as if the world was in his control. My question, do you know he is really healthier than before?