Friday, January 7, 2011

Women's tears send "no sex" message to men: study

Women's tears send "no sex" message to men: study: "JERUSALEM (Reuters) - Women's tears are a turnoff for men, Israeli researchers say.

The findings, in a study by the Weizmann Institute of Science and Wolfson Hospital near Tel Aviv on the role tears play in non-verbal communication, suggest that a chemical in women's tears lowers men's testosterone levels.

Researchers had expected the tears would boost the men's sense of empathy. Instead, their heart and respiratory rates, salivary testosterone and a brain scan all pointed to a reduction of sexual arousal.

The chemo-signal in women's tears, he said, was one way of saying "no, I am not interested."


Communication is key to survival. Humans, like all mammals, use smell in their communication. It is very efficient if you have a chemical signal which transmits what you want -- or clearly don't want -- in a sexual situation.




"

Thursday, January 6, 2011

Exercise May Improve Odds Against Prostate Cancer Death (HealthDay)

Exercise May Improve Odds Against Prostate Cancer Death
(HealthDay)
: "HealthDay - WEDNESDAY, Jan. 5 (HealthDay News) -- Prostate cancer patients
who routinely engage in modest amounts of vigorous physical exercise
appear to lower their risk of dying from their disease, new research
suggests."

Three hours a week or more of vigorous biking, tennis, jogging or swimming seems to improve the prognosis among such patients, the research team found. But they added that even moderate physical activity appears to lower the overall risk of dying from any cause.

Focusing specifically on walking (the most popular activity, accounting for more than one-third of total MET-hours per week among the patients), Kenfield and her team found that seven or more hours per week of walking conferred a "significant benefit" relative to walking less than 20 minutes per week.

The authors further found that pace mattered, as those men who walked at a "normal" pace had a 37 percent lower risk of dying from any cause than men who walked at an "easy" pace. Those who walked at a "brisk" or "very brisk" pace fared even better, experiencing a 48 percent drop in their risk for death.