Strikes can be made to be much more effective by good knowledge and use of targets on the body. Combined with other elements such as striking through a Target, Time on Target, Bracing a Target and overloading a target - Your strikes will have an absolutely devastating effect.
The Human Body is full of complex systems, we take advantage of the weaknesses through knowledge of Pressure points, motor nerve points, joint range of motion, momentum and leverage.
It's not about strength, weight, height or whether you are male or female. Anyone can learn Ju Jitsu and become very effective.
Pressure points are easy to learn and simple to take advantage of, whether it's to give you a few few inches to move free, to move your assailant in a particular direction or even to overcome your opponent with a minimum of applied force