The truly effective "formula for male vitality" to maintain high testosterone essentially boils down to five things:

1) Get enough sleep (7–8 hours)

2) Strength training 3 times a week

3) Control belly fat

4) Reduce chronic anxiety and stress

5) Consume sufficient protein and healthy fats

Achieve these points, and a 40-year-old's state can be close to that of a 30-year-old.

A very realistic phenomenon is that men in reality fall into two categories:

One type: After 40, big belly, no strength, no drive, mentally fatigued.

The other type: After 40, strong energy, strong action ability, decisive decision-making, strong competitive spirit.

The difference often isn't age, but testosterone levels.

And testosterone is essentially the result of: physical condition + lifestyle.