The tooth-brush test for handedness
If you brush all your teeth with your right hand, your dominant side is probably on the right.
If you brush all your teeth with your left hand, your dominant side is probably on the left.
If you can brush all your teeth with either your right or your left hand, you may be ambidextrous.
If you brush some of your teeth with your right hand, and the rest with your left, then you may have a mixed dominance. In human society, your handedness can sometimes be an advantage, and sometimes a disadvantage. Most devices and structures are designed for the right-handed majority – everyday items such as door handles, stair rails, and scissors are right-handed. The left-to-right flow for reading and writing favour right-handers. Left-handed baseball pitchers are in demand because the majority of batters are right-handed and find it more difficult to hit pitches delivered from a pitcher’s left hand.
If you brush all your teeth with your right hand, your dominant side is probably on the right.
If you brush all your teeth with your left hand, your dominant side is probably on the left.
If you can brush all your teeth with either your right or your left hand, you may be ambidextrous.
If you brush some of your teeth with your right hand, and the rest with your left, then you may have a mixed dominance. In human society, your handedness can sometimes be an advantage, and sometimes a disadvantage. Most devices and structures are designed for the right-handed majority – everyday items such as door handles, stair rails, and scissors are right-handed. The left-to-right flow for reading and writing favour right-handers. Left-handed baseball pitchers are in demand because the majority of batters are right-handed and find it more difficult to hit pitches delivered from a pitcher’s left hand.
