Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: 15 astounding facts about the human body > Health-in-Motion 18 July 2017 There is such a thing as too much of a good thing There is such a thing as too much of a good thing, certainly in the case of doing exercise. A recent review of published data demonstrates that folks who exercise excessively – for instance by running or working out in hot conditions for more than two hours at 60% VO2max – put their health at risk. Increasing the duration and intensity of exercise may result in damage to the cells of the intestine, causing leaks that allow pathogens to enter the bloodstream and cause acute or chronic health problems. 0 More: Daily Dose: 15 astounding facts about the human bodyHealth-in-Motion advertisement Other news Lifestyle Floater alert: Here’s what it means if your poop floats News 35 women fall pregnant despite using contraception app News 5 diseases you risk getting if we run out of water Lifestyle 5 photos of your cervix you need to see Fitness 4 sprint workouts to help you get faster News QUIZ: How many of these random health facts do you know? From our sponsors Managing diabetes in the workplace Back-to-school with diabetes Discover treatments that can help reduce acne What can I do to reduce or remove acne marks? Live healthier Terrific Tea! » Rooibos makes cocktails healthier Rooibos: an alternative energy drink More than 10 reasons why rooibos is good for you Today marks the first annual National Rooibos Day, which aims to raise awareness of the health benefits and many uses of rooibos tea. Healthy? Are you sure? » 5 diseases we can get from animals Could your salon visit make you sick? 7 terrifying diseases you could have without knowing it Not all serious illnesses come with tell-tale symptoms. There are diseases that can turn your body into a ticking time-bomb while you're unaware of any danger.