A man is also considered to reach his physical prime in his 30s because afterward, muscle mass begins to decline. But if a man decides to work out in his 40s or 50s and rebuild that mass, he may actually reach physical peak then.

What makes a millennial happy?

As I pointed out above, the two most influential factors on millennial happiness at work are work/life balance and positive recognition. These two things can only be achieved through a data-driven strategy fed directly through employee feedback.