[yesthatjallen]

Decline in Serum Testosterone Levels Among Adolescent and Young Adult Men in the USA

[Flaming Conservative]

Decreased physical activity?

[Hang'emAll]

Besides taking drugs and eating soybeans. Could be the fact that everyone tries to hide from the Sun (Vitamin D), Stay away from eggs and meat (Zinc). And collect participation trophies instead of winning.

[rbg81]

I’ve said this for a long time. Young men LOOK much different today than the 80s. And certainly with regard to how they looked in the early 60s.

[Red Badger]

Veganism.........................

[central_va]

Too much masturbation..

[big truck]

I honestly doubt if it’s that high. What passes for young men these days couldn’t whip a sick kitten.

[TTFlyer]

William Holden, Lee Marvin, John Wayne, Clint Eastwood, Cary Grant, Gary Cooper, etc., etc. vs. today’s actors.

We are not men we are devo.

[Savage Beast]

Maybe that's behind the Decadence of Western Civilization.

Don't worry. Donald Trump has enough testosterone for the rest of them.

[ansel12]

All the reasons that get mentioned, but I think the feminized life in a feminine society and a feminine culture we live in is part of it also.

Female behavior and standards is the state of normal today.

[FlingWingFlyer]

Use it or lose it.

[Joe 6-pack]

Eat more oysters.

[READINABLUESTATE]

Estrogen in the drinking water.
Conventional wastewater treatment plants are not specifically designed to remove these micropollutants, including estrogens.

[9YearLurker]

I remember fully bearded 8th graders back in the ‘70s. Hairy backs were legion.

Now many fully adult men have only scraggly partial beards and squeaky little voices.

[BitWielder1]

Soy products, ultra-processed food, lack of physical activity, what boys used to do is actively discouraged today.
Plus told to stay away from girls, so what do they need testosterone for?

[Opinionated Blowhard]

I don't know the reason why, but I think I can pinpoint the time when it started . . . .

[Diana in Wisconsin]

When a gay Rock Hudson is more manly than what they're producing today:

[equaviator]

Probably why their sense of humor is so poor. Guys usually have a sack full of jokes they can retell whenever the situation calls for it but not these snowflakes. If they could identify with any of the Three Stooges, it would be Curly Joe: “Heyyy, not so haarrrd!”.

[MayflowerMadam]

Female hormones pumped into chickens?

[Carry_Okie]

Hugely useful data, thank you!!!

[Buttons12]

Males my age — millennials, and I refuse to call them “men” — have high voices. They sound like females. Some like very young females.