Hundreds of billions of dollars are spent searching for cures for chronic diseases.
But there is a natural antidote that costs nothing and is available to everyone – exercise.
There is now definitive evidence that just 20 minutes of physical activity per day slashes the risk of cancer, dementia and heart disease by around a third.
That is more effective than some medications – and the exercise doesn’t have to be a yoga class or boring run on a treadmill,