Is weed bad?

Those are both wive's tales.

"A study concluded that there was no increased preponderance of arthritis of the hand in either group; however, habitual knuckle-crackers were more likely to have hand swelling and lower grip strength. Habitual knuckle-cracking was associated with manual labour, biting of the nails, smoking, and drinking alcohol in the study participants and their families. It was concluded that habitual knuckle-cracking results in functional hand impairment and therefore should be discouraged."

http://en.wikipedia.org/wiki/Cracking_joints

"It is the best for your spine if you had no pillow. Ideally, the best way is on your back with no pillow."

For side sleepers, which includes Early Show co-anchors Julie Chen and Maggie Rodriguez, Trespicio says the big problem with that position is putting your arm or hands under your head. "Resting your head (which weighs about 10 pounds) on your arm for hours at a time stresses the body, pressing on the nerves that run through the top of the shoulder and down the arm, resulting in numb fingers," she said. In addition, Trespicio says the shoulder you sleep on also gets hiked up toward your ear, which constricts the shoulder and neck muscles.

http://www.cbsnews.com/stories/2009/06/1...1549.shtml