Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxic > 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: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Parenting Try small 'bites' to get kids to exercise Fitness How to maximise your rest days even when you’re totally wrecked Medical After a spouse's death, sleep woes increase health risks News24 Man with rare cancer determined to find donor after being given seven years to live Medical Why sudden hearing loss should not be ignored Lifestyle 8 reasons why you’ve got foamy urine all of a sudden From our sponsors Dementia and Incontinence: what you need to know Tell-tale signs you need a mattress upgrade Keen to win a R2 000 voucher? Good health begins in your gastrointestinal tract Live healthier Smoking dangers » Hubbly hooking lots of young adults on tobacco Hookah smokers are inhaling benzene Many young adults misinformed about hookahs Hookah pipes far from harmless, study warns In addition to toxic substances from tobacco and nicotine, hookah smoke exposes users to charcoal combustion products, including large amounts of carbon monoxide. Managing incontinence » 5 avoidable triggers that can make urinary incontinence worse Urinary incontinence is a manageable condition – here are a few common triggers of urinary leakage.