BOTH HANDS equally used while playing guitar, piano, harp, hiking/scrambling, or giving massage. I swim sidestroke mostly, switching sides every half minute.
Often use NO HANDS driving a car, left index finger as necessary.
LEFT HAND primary when arm-wrestling, skiing, typing, drinking or eating dinner. (I hate constantly removing a knife from my right hand, so fork and spoon are mostly lefties).
RIGHT HAND primary most of the time ... reading, writing, sewing, puzzles, wallet, ... left hand holds while right hand manipulates. Somersaults and flips usually land on my right arm. Girlfriend always goes on the right side.
ALL OF MY INJURIES, broken foot, torn ligaments, broken wrist, 5 stitches on finger, sprained back, 60 stitches on head, cap on tooth, ... are on the left side. Strange.
TRIVIA:
1) Do most doors push open from the left, and pull open from the right?
2) Stairs going up castle turrets usually wind to the right, so the defender backing up the stairs has the right-handed advantage.
3) Some yoga practices recommend sleeping on the right side to aid digestion. Any basis in fact?
4) Molecules can be left or right -handed. Does a left-handed person digest any differently? :-)
5) In the Northern hemisphere, more drains and toilets spin counter-clockwise than clockwise, due to the Coriolis effect from the rotation of the Earth. In the Southern hemisphere, it's the opposite. (Not. It's an
urban legend!)
6) Studies have shown that righties
live 9 years longer than lefties, possibly due to accidents. Studies have also shown that both believers and non-believers should understand how studies are done.
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"... when the sharp-tongued Benjamin Disraeli, so the story goes, was ordered in the last century to withdraw his declaration that half of the cabinet were asses. `Mr. Speaker, I withdraw,' was Disraeli's response. `Half the cabinet are not asses.'"