In this day and age, security is something that has become more of a concern than it was in the past. As the population in any region increases, it naturally follows that problems such as muggings and robberies are bound to increase.
The best way to protect yourself when in such a situation is to make use of martial arts, especially if you do not have any sort of weapon to protect yourself with.
In such cases, you can try to take advantage of Brazilian jiu-jitsu. This is one of the best martial arts to learn since it can benefit anyone of any size. If you are huge, you can learn it and become adept at protecting yourself in case you need to.
If you are small, you will also find Brazilian Jiu-Jitsu to be the ideal martial art, since it enables one to fight using the benefit of leverage and grappling. In fact, this martial art was developed for use by smaller and weaker individuals, and if you learn it correctly you will find that it is very easy for you to subdue much bigger and stronger individuals.
For this reason, this kind of martial art is especially good for females. By taking the time to learn Jiu-Jitsu, you can give any assailant quite a surprise, since you will be able to disable them within a very short time despite your lack of mass or strength!