•A small amount of stress helps you remember things, but a large amount hinders your memory.

•The human attention span maxes out at about 10 minutes, after that we tend to revert to daydreaming.

•The highest amount of relationships/close friendships you can maintain is between 50 and 150.

•Girl talk helps women to form closer bonds , but also increases depression and anxiety.

•Antisocial or unpopular teenage girls are 70% more likely to put on weight  than popular, sociable teenage girls.

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