We know that the market is dynamic,as in it changes constantly,and as such,an investor who isn't careful enough to know when he is investing will fall in to heart problems or emotional trauma as a result of a massive fall in value,that is why it is important to condition your mind in a way that you won't get heart failure when you are at the loosing end.
Every investor knows there is risk in the game,and taking the risk is what shows you are ready to eradicate poverty from your life.
Most importantly we should always trade what we can afford to lose, nobody should give themselves unnecessary heartache because they don't know how to control their emotions when trading.
Trading is not for the weak-hearted and certainly not for those who have very little funds that can cause health issues to them when they lose them. The market is unpredictable, it is better to have the right mindset to be able to handle market unexpected drops.