Blood donation is a safe process. The donor's blood is collected through a new, pre-packaged and sterile needle that is only used once and then discarded. After donating blood, most people feel fine however, some people may have an upset stomach or feel dizzy or lightheaded, or experience pain or a small bruise where the needle was inserted.

Donating blood in itself only takes about 8 to 10 minutes. However, there are a lot of factors that should be taken into consideration while calculating time it takes to donate blood including the donor's health history, staff present, attendance at the blood drive, etc.

In most states, donors must be age 17 or older. Some states allow donation by 16-year-olds with a signed parental consent form. Donors must weigh at least 110 pounds and be in good health. Additional eligibility criteria apply.

Only for a moment. Pinch the fleshy, soft underside of your arm. That pinch is similar to what you will feel when the needle is inserted.