Interesting ?

some facts shared by my psychology lecturer during these few lecture classes, not very sure if they ARE facts, but pretty interesting that i can't resist from sharing with you guys :D

1. babies will die because of not being touched constantly. totally amazed when i heard this :O
2. you are still considered in your YOUNG adulthood even if you're at the age of 45. err, maybe i'm just so lack of general knowledge :P
3. children, from birth to the age 2, believe that anything out of sight does not exist, even their mom who leaves for the toilet, to them, does not exist anymore. 
4. people who nod frequently are more intelligent, said to be stimulating some parts of the brain more. i'm not so convinced with this one though.
5. there's a relationship between your attachment to a parent figure when you're an infant and your love for a romantic partner in your adulthood. not only that, this attachment does describe how you interact with your friends/ children/ family members.
6. our trust level towards the others is determined as early as from birth to approximately 12 months old. (ex: your mom failed to feed you when you're hungry in your infant year causes you to develop mistrust) this actually stays till the day you die. wow! just because your needs are not fulfilled at that age, you'll have difficulty in trusting others for your entire life! 
7. at the age of 18- 35, our main focus in life is intimacy. loneliness will attack if failed in finding an intimate partner. err, swt? seriously? o.O

aren't they interestingly funny?