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In a recentreport In the scientific journalNautilus,Richard Gutierrez Bribiescas, professor of anthropology, ecology and evolutive biology in Yale, zeros on the reason why those of us with a Y chromosome - and this is not just about humans, but all mammals - seem to be in the Realization of natural selection: This is because it's because we have more testosterone.

Yes, the same hormone that stimulates your metabolism, builds your muscles, fire your libido and gives your skin that the ethereal glow is generally only in Equinox ads, it's actually what kills you earlier than your wife . As bribiescas writes, having healthy and healthy levels of correlate testosterone (obviously) with a more robust level of physical fitness, but that the highest T has also been linked to all cold cancer.

In other words: Evolution spoke and says that you are more useful to the human race living a longer life. "Essentially," says Bribiescas, "the sex asset of birthday candles". Here are five ways that Biibiescas explains that testosterone can be the cause of the previous disappearance of men for humans and other animals of the entire animal kingdom. And if it does not scare you enough, be sure to read ifTestosterone replacement therapy is just for you.

We can discuss the rest nowadays on which sex is higher. But when it comes to fighting the disease and the disease, the more just sex takes the cake. The search for avian populations, reptilians and mammals has shown that creatures with higher testosterone levels are infected more frequently and have a more difficult period that struggle against these infections.

On the other hand, estradiol, a women's hormone possess in shovels (men have few things), stimulates immune function. So, not only women are less likely to get sick, when they fall ill, they will be better to fight. Mathematics check in this regard: women, after all, must stay healthy to reproduce, while men from an organic perspective - do not do it.

In 2006, ornithologists experienced testosterone levels in birds. (It is contrary to the ethics of experimenting with life scenarios or death in humans, so that science must turn to the animal kingdom.) Birds with increased testosterone have been able to fight the competition and the father more babies. Sounds good, right? Well, again, there is a catch: these birds put fewer fat and, as such, have had a much more difficult period of surviving up to the next breeding season. In short, you push the leaves that you have exposed to the line on the line.

Elsewhere in the animal kingdom-in Australia, there is a marsupial called a quoll. The male quolls tend to live about a year, sometimes less. The female quolls live however three times longer. The Jaime Heiniger ecologist observed that, during coupling rituals, male quolls have a sharp increase in testosterone. This leads to "intense coupling battles" (awesome), but is also directly related to the shorter life of male quolls (not great). In the animal kingdom, having less fat makes a more "vulnerable to food deficits and infections", "Bribiescas writers. So, maybe it's better the expression is" screwing like rabbits "and not" screwing like quolls ". If this old screed your interest, read on the10 best sex boosters everyday for men.

Testosterone replacement therapy has not been sufficiently long enough for successful concluding evidence on this one, but themaybesandlikelys are always there and they are not exactly comforting. A 2014 study showed that, in older men of testosterone, after 90 days, the probability of a non-lethal infarction - not a typo, which means a heart attack - has significantly increased significantly. So, if you plan to take testosterone supplements, you should be sure ofbuild a steel heart.

Well, this one is doozy: the hormone "man" could cause cancer most often found in men. A 2010 study published in theAmerican Journal of Human Biology found a correlation between testosterone levels and prostate cancer rates. Companies with higher testosterone levels also show higher prostate cancer rates. Of course, more research must be done, but it's overwhelming evidence. After all, as we are all well aware,Prostate cancer is quite the test.

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