How scents boost your health

Do you want to get a better night's sleep, reduce anxiety or increase your libido? The answer may be right under your nose, says Erin Kisby. Of your five senses — hearing, sight, smell, taste, touch — it's your sense of smell that comes out on top for its ability to improve your overall health. It's long been known certain aromas can bring on a flood of memories — evoking everything from joy to nostalgia — and this is because aromas are processed in the limbic system, a part of the brain that deals with emotions. However, scientists are now discovering certain smells play a role in much more than mood, and may even have the ability to ease migraines, improve cognitive performance and prevent anxiety. So can you use fragrance to influence your health, outside of a research lab? "You can absolutely use scent day-to-day to improve your wellbeing," says Dr Alan Hirsch from the Smell & Taste Treatment and Research Foundation in the US. Here are some of the latest research findings and how you can use certain fragrances to your benefit. Reduce stress: head for the park Fresh air definitely has a positive effect on mood. There are a number of explanations why this occurs, and researchers from the University of Queensland have one: Freshly cut grass and green leaves release at least five chemicals that contain stress-relieving properties. However, if you're feeling tense and a walk in the park is out of the question, inhaling the scent of lemon, mango or lavender may also help to reduce stress levels, Japanese researchers have found. Reduce anxiety: by peeling an orange Everyone experiences anxiety and fear at times. However, if you're facing an event that is causing increased anxiety, a whiff of orange may help you relax, researchers at the University of Vienna have reported. The researchers found an ambient odour of orange essential oil reduced anxiety and improved the mood of patients waiting for a dental treatment, compared to a control group with no added aroma. Have sweet dreams: smell the roses Pleasurable fragrances may help you have a better night's sleep by improving your dreams. When researchers exposed sleeping participants to a rose scent, they reported having pleasant dreams. On the other hand, when the women were exposed to a negative scent, in this case rotten eggs, it provoked unpleasant dreams. Sleep soundly, and wake up on the right side of the bed, by keeping a sachet of rose-scented potpourri on your bedside table. Boost libido: bake a pumpkin pie Odours can soothe frazzled nerves, promote sleep, wake us up, lift our spirits and may even enhance sexual function. Of the fragrances that most turn women on, cucumber, lavender, baby powder and pumpkin pie rate the highest, the Smell & Taste Treatment and Research Foundation found. To get in the mood for romance, end dinner with a slice of pumpkin pie. For the full story, see Good Health.

Should there be a tax on junk food??

A tax on junk food should be implemented as a tool to reduce consumption and address the obesity epidemic, according to an article by Monash researchers that appeared in the Medical Journal of Australia. Ms Molly Bond, PhD candidate at the Michael Kirby Centre for Public Health and Human Rights, School of Public Health and Preventive Medicine at Monash University, and co-authors discuss the possibility of introducing a junk food tax in a similar fashion to tobacco and alcohol taxes. Ms Bond said that the recent report on taxation -- the Henry tax review -- recommended that the federal government increase taxes already levied on tobacco and alcohol, because these are the best way to reduce social harms caused by the use and misuse of these substances. However, no similar scheme was recommended for junk food. "In recent years, obesity has overtaken smoking as the leading cause of premature death and illness in Australia," Ms Bond said. "More than 60 per cent of Australian adults and one in four children are overweight or obese. "Evidence suggests that the obesity epidemic in Australia and around the world is predominantly the result of over-consumption of food rather than a reduction in overall physical activity. "Curbing this over-consumption, of junk food in particular, must be a central component of any obesity prevention strategy. "Junk foods have the same pattern of misuse and the same social costs as tobacco and alcohol. "The Henry tax review rejects the idea of taxing fatty foods and, to date, the federal government has not implemented a tax on junk food," Ms Bond said. Ms Bond observed that the government's response to the obesity epidemic has been to create a partnership between governments and industry, which will inevitably align with industry objectives rather than public health needs. "We hope that the efforts of the public health community are not consumed in responding to government-industry initiatives that are almost certain to have no effect on the obesity epidemic." The Medical Journal of Australia is a publication of the Australian Medical Association. For further information about the Michael Kirby Centre for Public Health and Human Rights, visit The Michael Kirby Centre for Public Health and Human Rights website.