I tried it; I do it every day now, sometimes several times while working long hours on the computer or when watching television.
Use it as a habit-breaker: Instead of reaching for a cigarette, jumping up to visit the refrigerator for the umpteenth time, pouring a glass of wine or beer that you really don’t want, but it’s there and you have the need to do something, anything, reach for the hairbrush and do yourself a favor.
Any size hairbrush will do. The tapping should produce a hollow sound. He’s right, don’t tap so hard that it makes you dizzy. Soft taps and then the same with the brushing back and forth.
I take it a step further and simply brush my whole head as a relaxer and an energizer after I do the Dr. Mandell Hairbrush Maneuver. It’s actually a scalp-brushing I’m doing. The hair is irrelevant, but it might do something good for the hair follicles.
If you don’t have any hair buy a soft bristle brush. You can use your fingers, but as a habit-breaker technique, it’s better to be holding something in your hand.