20 Amazing Psychology Facts You Need To Know

Lost Something? – Roughly speaking, losing something makes you twice as miserable as gaining the same thing makes you happy.
Lookalike Couples – If two people live together for a long time, they start to look like each other. They grow to look alike partly because of nutrition – shared diets and eating habits – but much of the effect is the simple imitation of facial expressions. Couples who end up looking alike also tend to be happier!