Sunday, November 28, 2010

Healthy sex life makes men live longer .....THE TELEGRAPH

Healthy sex life makes men live longer

A healthy sex life makes men live longer, according to Italian scientists - providing you are faithful to your partner.

 
Previous research has shown that testosterone is essential for health and wellbeing as well as the prevention of osteoporosis Photo: ALAMY

Italian medical researchers carried out a series of studies as part of the conference, and found that a healthy sex life means fewer cardiovascular problems for men.

The investigation was carried out by the Italian Society of Sexual Medicine who are holding their annual congress in the city of Modena.

Dr Emmanuele Jannini, coordinator of the research, said: "What was evident from the research was that men who had active sex lives and were faithful to their partners had fewer cardiovascular complaints and lived longer.

 

"Increased sexual activity produces more testosterone, which leads to less depression and a better cardiovascular performance which means an improved metabolism."

Dr Jannini said the research has been carried out by the University of Florence on 4,000 men and the study revealed that those who were unfaithful had a poor cardiovascular performance because they were "also coping with the increased stress of their infidelity."

She added that the study had shown a poor quality sex life could also lead to depression.

Dr Jannini added that an increased amount of testosterone produced during sex was good for men because it burned off excess sugars and reduced the risk of heart disease.

She added: "People who have diabetes especially benefit from a healthy sex life and an active sex life also helps avoid prostate problems for men."

Testosterone is the principal male sex hormone and is an anabolic steroid.

Previous research has shown that it is essential for health and wellbeing as well as the prevention of osteoporosis.

The conference also heard how too much time spent speaking on mobile telephones appears to "put sperm to sleep" and can pose a risk for male fertility.

According to the preliminary results of a study by Rome's La Sapienza University and the Santa Maria Goretti Hospital at Latina, south of the capital, "there is a correlation between cellphone use and a worsening in sperm mobility."

Andrea Lenzi, president of the Italian Society of Andrology and Sexual Medicine (SIAMS), said: "The waves appear to put the sperm to sleep.

"The data are, however, preliminary and we are verifying the presence of other factors: people who speak on their cellphones a lot are often more stressed or they smoke and drink more, and that can impact sperm quality."

The study, which examined sperm from men using mobile phones from a minimum of half an hour to a maximum of four hours a day.


 
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Be fit, be active, work out as...

Fitness fanatics 'have high sex drives'

Fitness fanatics really do havbhavane higher sex drives, according to scientists who say they have identified a link between exercise and personality.

They also tend to be more aggressive and socially dominant said Dr Peter Biro, an Australian academic.

He said their findings, which came from studying the relationship between behaviour and metabolic rate in a number of insects, birds and animals, gave weight to the popular stereotype of the athletic "jock" and the awkward "nerd".

Dr Biro said there was enough evidence from numerous studies to suggest that those that had a higher metabolism, and thus tended to exercise more, appeared to exhibit particular behaviour traits that often included a higher sex drive.

"Some of us are couch potatoes while others are drawn to sport and exercise," he said.

"We often associate the athletic 'jock' type or person with being aggressive and social, whereas the more sedentary 'nerd' often is seen as more socially awkward and submissive.

"These are generalisations, but most people would probably agree there is some truth to them."

Dr Biro, a senior lecturer at the University of New South Wales's Evolution and Ecology Research Centre, has written on the subject with Judy Stamps of the University of California, Davis, in a review article in the journal Trends in Ecology and Evolution.

The article concludes that there is now enough evidence to suggest a link between personality and the rate of metabolism – the chemical process that converts food into the energy that fuels the body.

He explained: "Animals in captivity often engage in energetically demanding behaviour when they have unlimited food available.

"Mice spend considerable time on running wheels, for example, and other animals often pace back and forth in zoo enclosures. Given they don't need to move about in search of food as they would in nature, we might ask why they are apparently 'exercising.'

"Recent research suggests that this behaviour might be related to an individual's capacity to generate energy - its 'metabolic capacity'."

He continued: "Male crickets with sex on their mind tend to call to attract mates more and have higher metabolism than those with slower metabolism.

Metabolism and aggression are also linked. For example, it has been shown that in several species of fish and birds, individuals with high metabolism tend to be more aggressive and dominant over those with slow metabolism.

Chris Jones, head of physiology at Nuffield Health, said although there was no evidence of a direct link between exercise and sex drive, there was a link between doing regular exercise and levels of testosterone and adrenalin.

"There is evidence that enhanced testosterone and adrenalin in men and women does enhance libido."

He added: "What's particularly interesting is that exercise also seems to have an effect on stopping the problems that lead to a decrease in libido."

Sapan Sehgal, 27, an instructor at London Fields Fitness Studios, agreed there was a link between exercise and sex drive.

"If you exercise regularly you are fitter, healthier and have more confidence to approach the opposite sex," he said.

"Your hormone levels are also increased."


 
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Tuesday, November 9, 2010

Low testosterone levels lead to Alzheimer’s

Older men with low levels of the male sex hormone, testosterone, are more prone to Alzheimer's disease, revealed a new study.

"Having low testosterone may make you more vulnerable to Alzheimer's disease. The take-home message is we should pay more attention to low testosterone, particularly in people who have memory problems or other signs of cognitive impairment," said Dr. John E. Morley, director of the division of geriatric medicine at Saint Louis University and a study co-investigator.

Led by Dr. Leung-Wing Chu, who is chief of the division of geriatric medicine at Queen Mary Hospital at the University of Hong Kong, researchers studied 153 Chinese men who were recruited from social centers.

They were at least 55 years and older, lived in the community and didn't have dementia.

Of those men, 47 had mild cognitive impairment - or problems with clear thinking and memory loss.

Within a year, 10 men who all were part of the cognitively impaired group developed probable Alzheimer's disease.

These men also had low testosterone in their body tissues; elevated levels of the ApoE 4 (apolipoprotein E) protein, which is correlated with a higher risk of Alzheimer's disease; and high blood pressure.

"It's a very exciting study because we've shown that a low level of testosterone is one of the risk factors for Alzheimer's disease," said Morley.

The findings corroborate findings in previous studies of older Caucasian men that show low testosterone is associated with impaired thinking and Alzheimer's disease.

They suggest that testosterone may have a protective value against Alzheimer's disease.

The next step, Morley said, is to conduct a large-scale study that investigates the use of testosterone in preventing Alzheimer's disease.

The researchers encourage studying the effectiveness of testosterone replacement in older men who have both mild memory problems and low testosterone in staving off Alzheimer's disease.

The study was published in the Journal of Alzheimer''s Disease.

Read more: Low testosterone levels lead to Alzheimer's - The Times of India http://timesofindia.indiatimes.com/life-style/health-fitness/health/Low-testosterone-levels-lead-to-Alzheimers/articleshow/6697279.cms#ixzz14pknWBjb
 
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