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Sophie Whitbread Whether you're team tea or team coffee, you're likely getting some health benefits from your cuppa. Coffee's caffeine kick, for instance, can help with energy, while tea may support smoother sleep. But does one hot drink outshine the other? Here's the science. Caffeine, alertness and sleep Many of us make coffee the minute we wake up, and for good reason. A typical cup of coffee, which contains 40–300mg of caffeine, has been found to improve alertness, external, attention and reaction time, external, and may enhance memory and mental sharpness, external. In tea, while evidence is limited, caffeine may be moderated by an amino acid called L-theanine , external – meaning you feel awake and focused without the 'agitation' that can come with coffee. But does this extra alertness come at a price? After 10–12 hours, a quarter of the caffeine could still be there, according to sleep scientist Matt Walker , external. This means you may have trouble fall...

  Melissa Hogenboom One overlooked factor that can help to keep your skin in better shape is what we eat (Credit: Getty Images) Plants, fats, and fermented foods can reduce wrinkles, boost collagen and improve the texture of our skin. Skin is the largest organ in the body and must last us our lifetime. In addition to keeping us looking youthful, well-cared for skin also actively benefits our wider health. But as the barrier between our bodies and the outside world, it takes a battering. Many environmental factors contribute to skin ageing, including air pollution, ozone and a changing climate, says Jean Krutmann , professor of dermatology at the Leibniz Research Institute for Environmental Medicine . "For decades we thought ultraviolet radiation was the major driver of environmental-induced skin ageing. We know this is not correct," says Krutmann. "Other wavelengths within natural sunlight can contribute to ageing, for example, visible light and infrared radiation....