Age and genetics are the major factors in testosterone generation. It peaks in your 30s and drops steadily thereafter. There are some things you can actively do to increase testosterone level, but the effects will be miniscule compared to what your age and genetics have already given you.
Kraemer et al, 1991; Kraemer et al 1990:
High volume, multiple set programs are
more effective at increasing the
body's production of testosterone and
Working large muscles such as those in the legs also slightly increases HGH and testosterone.
Eat less soy. Soy increases estrogen, a female hormone, which lowers testosterone. There's scientists on both sides of this. Some say the soy isoflavones are 1/10,000 the potency of real estrogen, so there's no real danger in eating soy.
Get more zinc:
Zinc is very important for the
production of natural testosterone
because Zinc prevents testosterone
from being converted into estrogen
(the female hormone) by making the
enzyme aromatase not work (look at #3
Zinc itself turns estrogen into
testosterone and Zinc helps produce
healthier sperm and higher sperm
counts so actually... Low levels of
zinc can cause low testosterone
Foods high in Zinc include oysters (a
natural aphrodisiac), beef, liver,
crab, seafood, poultry, nuts and
seeds, salmon, brown rice, cheese,
pine nuts, beans, turkey, milk,
yogurt, and cottage cheese or you can
supplement with at least 50-to-100mg
of Zinc daily
Get more sleep.
A university of Chicago study showed
that men who got little sleep had way
lower testosterone levels than men who
got 6-to-8 hours of sleep and...
According to a University of North
Carolina study... Your testosterone
levels can drop down by as much as 40
PERCENT when you don't get enough
sleep and generally...
When you get stressed out - your body
releases a "stress" hormone called
cortisol that shuts down testosterone