Disrupted DNA in the "power packs" of cells may explain why women tend to live longer than men, research suggests.
Mutations in the mitochondria - rod-like bodies in cells that generate energy - cause men to die early, scientists believe.
The evidence emerged from studies of male and female fruit flies.
Like humans and other animals, the flies only inherit mitochondrial genes from their mothers.
This could account for the fact that mitochondrial mutations are more likely to affect men, say scientists.
How about these 'anti-ageing' treatments? Scroll down (PICTURES)
"While children receive copies of most of their genes from both their mothers and fathers, they only receive mitochondrial genes from their mothers," said lead scientist Dr Damian Dowling, from Monash University in Australia.
"This means that evolution's quality control process, known as natural selection, only screens the quality of mitochondrial genes in mothers.
"If a mitochondrial mutation occurs that harms fathers, but has no effect on mothers, this mutation will slip through the gaze of natural selection, unnoticed. Over thousands of generations, many such mutations have accumulated that harm only males, while leaving females unscathed."
The study appears in the latest issue of the journal Current Biology. It found that genetic variation across mitochondria was a reliable predictor of life expectancy in male, but not female, flies.
Most inherited DNA, comprising the majority of genes, is wrapped up in the nucleus at a cell's heart.
The mitochondria have their own separate DNA, which is also passed down to offspring - but only by mothers.
In earlier research, Dr Dowling's team linked the maternal inheritance of mitochondria to male infertility.
"Together, our research shows that the mitochondria are hotspots for mutations affecting male health," said the doctor.
"What we seek to do now is investigate the genetic mechanisms that males might arm themselves with to nullify the effects of these harmful mutations and remain healthy."
Snail Slime Cream
Carefully collected snail's slime is a potent anti-ageing ingredient that helps reduce scars, stretch marks and acne, as well as smoothing out wrinkles. The rich snail secretion is packed with regenerative compounds. Now this anti-ageing treatment isn't as unusual as it sounds, as it's already a staple beauty product in Britain's <a href="http://www.hollandandbarrett.com/pages/product_detail.asp?pid=869&searchterm=snail&rdcnt=1" target="_hplink">Holland and Barrett</a>.
Rendered from from the fat of an emu bird, emu oil is a lesser known anti-ageing oil that has been used for centuries in the Aboriginal communities for its healing powers. Mixed with eucalyptus oil, it containing bundles of vitamin E and A, the oil's antioxidants help repair wounds and thickens skin against ageing. The cream also soaks moisture into the skin, which avoids dehydrated, saggy looking skin.
Definitely not one for vegetarian beauty fans, but pigs trotters are a popular anti-ageing solution in Japan, as the trotters are a great source of collagen - the vital ingredient for boosting elasticity in the skin.
Bee Sting Venom
The bee sting venom facial doesn't involve a her of bees pricking your face, but instead, the venom from the sting is transferred into a gel and then rubbed on the face as part of an intensive facial. According to researchers in South Korea, the venom helps prevent the skin from sun damage and restores collagen production.
Spermine is a powerful antioxidant in human sperm and some beauty goers swear by its anti-ageing super powers. This treatment first surfaced in New York where the 'cream' is applied over the skin and then ultrasound and infrared light is used to penetrate through the skins lipid barrier. It's believed this 'sperm facial' leaves the skin looking blemish and wrinkle-free. And you don't have to have the treatment done in a salon, as a Norwegian company, Bioforskning, sell sperm-based products.
Breast Milk Soap
Breast milk soap claims to be a great alternative to ordinary soap as it doesn't dry up the skin and is good for reducing the appearance of facial scarring and wrinkles. However, the only snag is - it's best to make the soap yourself if you're breastfeeding. The ingredients? Olive oil, palm oil, coconut oil, heat-treated breast milk, and purified water.
Possibly the wackiest of them all - the 'Face Slimmer', originates from Japan but is (unsurprisingly) yet to take off in the UK. This rubbery-looking mouthpiece, created by cosmetic company Glim, is designed to keep the facial muscles pert by keeping the cheeks and mouth stretched in a permanent 'trout pout' position. The mouth guard comes with various face exercise ideas to keep the dreaded sagging jowls away. Image: <a href="http://www.flickr.com/photos/cool3c" target="_hplink">Flickr/ cool3c</a>
A treatment developed by British biomedical company <a href="http://www.intercytex.com/" target="_hplink">Intercytex</a>, created an anti-ageing treatment using microscopic skin cells from babies' foreskins. This unusual treatment is believed to rejuvenate and restructure ageing and damaged skin, by repopulating the lower layers of skin with millions of healthy skin cells from the foreskin that are packed of collagen and human dermal fibroblasts.
This alternative and somewhat painful-looking anti-ageing massage is designed to stimulate the blood flow, creating a youthful glow. The 'platza' treatment involves the bare back being thwarted with a 'broom' made of oak-leaf branches. The harsh brushing technique is also said to help tone up muscles and invigorate sluggish energy levels.
It's long been known that the placenta has great nutritional benefits (who can forget the '<a href="http://www.huffingtonpost.co.uk/2012/01/24/midwife-sells-placenta-pills-to-new-mothers_n_1227327.html" target="_hplink">placenta pills</a>') but it is also available in a face cream too. Skincare company <a href="http://www.lanocreme.com/en/Placenta/Default.aspx" target="_hplink">Lanocrème</a> sell a range of placenta-based creams that promise to nourish the skin using its 56 bio-stimulant proteins that help encourage skin replenishment.