Sometimes, the glasses themselves are responsible for causing the headache. If you wear glasses and find that you experience headaches on a regular basis or even once in a while, take the time to investigate why it may be happening, because wearing eyeglasses shouldnât cause you any pain.
coÂ·heÂ·sion. n. 1. The act, process, or condition of cohering: exhibited strong cohesion in the family unit. 2.
The term is used especially. in the interbreeding and cohesion species concepts. Cohesion mechanisms include isolating mecha-. nisms in sexual species as well as ââstabilizingââ. ecological selection, which may cause cohesion. even within asexual lineages.