Sumitomo Mitsui, on the other hand, would risk a political uproar by exercising the option.

ECONOMIST: A curious proposal by one of Japan's biggest banks

So, you can count on obtaining the appropriate level of risk in each market by exercising a disciplined buy and hold strategy.

FORBES: Understand The Cycle Of Market Emotions To Make Better Investing Decisions

"That risk can be reduced by simple lifestyle changes, such as not smoking, drinking alcohol sensibly, exercising regularly and eating a healthy, balanced diet to reduce the risk of obesity - a major contributory factor increasing the risk of diabetes and eventually cardiac disease, " he added.

BBC: Heart disease: Drive to reduce deaths in Wales

Today's buyers are well heeled and underleveraged, exercising millions of stock options for which they never stood at risk.

FORBES: The "Orange Marilyn" and the market

For stockholders, exercising the stock early, before a liquidity event, adds risk.

FORBES: SharesPost Launches Lending For Startup Stock Options

Double that effort by exercising for an hour a day for five days and the risk for stroke drops by almost another 25 percent.

CNN: Study: Exercise cuts stroke risk by almost half

Ms Taggart said women could minimise their risk by eating a balanced diet, drinking less alcohol and exercising regularly.

BBC: NEWS | Health | 'Breast risk' for the left-handed

She added that "maintaining a healthy weight and exercising regularly - especially in midlife - are hugely important in reducing your risk".

BBC: Rise in obesity poses 'dementia time bomb'

They explained that breast cancer risk could be decreased by up to 38% through lifestyle factors including maintaining a healthy weight, exercising regularly, and eating a healthy diet.

CNN: Does diet really matter in breast cancer?