Tell your friend to eat more red meat and buy a new gun. That will fix him right up.
For sure though. I’m 46 years old and started eating LEAN red meat at least once a day a few years ago. It did wonders for my mood and energy level almost immediately.
Prior, I was a big pasta and cheese eater. I eat lots of pasta still (I am from an Italian family), but with huge meatballs piled on top now.
Also, my cholesterol and blood pressure is perfect.
As for the gun, I have several; Looking for a Winchester 94 to plink with kids currently.