First, social, and hence brain, evolution may have been driven mainly by female interests.

Around 20 per cent of the students were committed larks who were active mainly in the morning and died socially by the evening, and 20 per cent were committed owls who hardly stirred before midday but came into full social mode in the evening and into the night,

It seems that if a reconciliation is going to happen, it happens within the first few weeks after the break-up, otherwise it becomes semi-permanent with the two sides not even willing to initiate the process of reconciliation.

core of relationships that remain surprisingly stable across much of the lifespan. These are those very close family and friends that provide us with emotional and social support and who,

Friendships depend on you investing enough time and effort in each other to keep the relationship well-oiled and functional.

They found that people hold more positive attitudes toward

less than twenty minutes a month.

This study is particularly important because it asked everyone else what they thought about you: this allowed them to determine the number of friends people actually had

There is a trade-off here, because your family provide you with the only really secure source of long-term support – they are the only ones who will stand by you through thick and thin, no matter what. But when you come home in tears after you have been jilted, they are invariably less than helpful.