“Instead, compared with neutral emotion, sadness - and not just any negative emotion - made people more myopic, and therefore willing to forgo greater future gains in return for instant gratification.” (As quoted in BI)

Thus, participants in the sadness condition earned significantly less money than subjects in the neutral condition. But the million dollar question arises – ‘Why?’

Blame it on sadness - induced impatience. Scientists like to call it "myopia" or "present bias,” which are two mindsets found in people wherein decision makers want immediate gratification and so they ignore greater gains associated with waiting.

More: 7 Ways Money Can Buy You Happiness

In his book ‘Save More Tomorrow’, Behavioral Finance Economist Shlomo Benartzi goes into detail about the dangers of myopic thinking.

"Seduced by temporal myopia in their younger years, many people get around to saving seriously for their retirement far too late in their career, in their forties and fifties in many cases, which greatly reduces the amount of money they will have available for their retirement," he writes.

However, the next time when you're feeling blue, don’t take any investment decisions, rather save your big financial decisions for happier times down the road.

Also Read: 10 Most Generous Wealthy Indians