Where are your options ? If not, then its a maintaining the balance of a physical , mental or emotional, of the well-being
Obsessive–compulsive disorder (OCD) is amental disorder where people feel the need to check things repeatedly, perform certain routines repeatedly (called "rituals"), or havecertain thoughts repeatedly. People are unable to control either the thoughts or the activities for more than a short period of time.
The femur is not part of the circulatory system because it is a bone.
<span>potassium is the answer trust me</span>
I'd say trustworthiness, your friend is trusting you with keeping a secret that he or she will only share with you. I hope this helps :)