Evidence is growing that this âdigit ratioâ, especially when applied to the right hand, is a fundamental indicator of sexuality, aggression and Â­diseases suffered by men. 1  Pointing the finger: Scientists have noticed a relationship between finger measurements and a host of unrelated traits. This week, for example, strong evidence has emerged of a link between the â2D:4D finger ratioâ and a manâs likelihood of developing prostate cancer.
The palatal expander appliance is a specially made device used to widen the upper arch or roof of the mouth. By widening the upper arch, the upper teeth line up better with the lower teeth, giving the patient a better bite. Widening the palate makes room for crowded teeth to align better.
Another benefit of chest expander training is the relative safety of the exercise when compared to higher resistance methods of training such as free weights and exercise machines. Free weights require you to stop a significant amount of inertia when lifting, which can be hard on your joints.hest expanders are more difficult to injure yourself with than free weights, but it's not impossible. A sudden snap of the band can cause painful slaps and pinches, and you can push yourself too far by extending the band past the limits of your muscles, especially when fatigue sets in.