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Professor Peter Weisberg, medical director of the British Heart Foundation, says there is no evidence that men who have sex regularly in their 40s, 50s and beyond are at an increased risk of heart attack.'As far as the heart is concerned, sex is just another form of exercise,' says Dr Graham Jackson, consultant cardiologist at Guy's & St Thomas' Hospital and president of the Sexual Dysfunction Association.'In fitness terms, its equivalent is going for a mile-long walk or climbing up and down two flights of stairs.'If you're physically fit enough for that, there should be no increased risk during sex.'Regular sex really is the best medicine for preventing life-threatening heart disease – if you're a man, scientists have found.
New research shows making love several times a week can slash levels of homocysteine, a harmful chemical in the blood which can trigger cardiac problems.
Researchers did not speculate on why regular sex boosts older people's brain function, however, previous research suggests getting intimate stimulates areas of the brain associated with learning.
Study author Dr Hayley Wright from Coventry University said: 'People don't like to think that older people have sex, but we need to challenge this conception at a societal level and look at what impact sexual activity can have on those aged 50 and over, beyond the known effects on sexual health and general wellbeing.'The evidence suggests that the 'feelgood' effect of making love could be more about chemicals than sexual ability.
But scientists say women benefit much less because sexual arousal is less dependent on having a healthy blood flow, which is a key factor in keeping homocysteine under control.
In fact, making love could be one of the few pleasures in life that is genuinely good for you, say researchers.
It's thought men getting sex often have better circulation and healthier blood vessels.
This is crucial for preventing a build-up of homocysteine.
It has also been linked with Alzheimer's disease and cancer.
Having more sex might increase immunity from colds and flu.