Question is in details. is it safe for me to put on 20 lb ankle and wrist weights then continue my normal day? would doing so intern make me much faster and stronger and give me more endurance? i am 5'6" 155 lbs.

As : As long as you do not have specific joint problems such as arthritis or any other significant health problems, using weights is more than likely safe for you to do. However, depending on your daily activity, you may not experience much improvement in speed, strength and endurance. For instance, if you work a desk job, you may not benefit as much from wearing weights as someone who works a more physical job such as construction. One of the healthiest, most natural, and safest of all exercises is walking. You will benefit much more from going on a long, brisk walk for an hour (with or without weights) than just wearing the weights all day.

Cardio Mix: If you have adipose tissue that you'd like to lose then consider an increase in cardio and a balanced diet. However, do not always do the same exercise or you will increase your risks for stress injuries. Mix things up with running, biking, swimming, or circuit training. Ultimately you need to burn more than you consume. Best of luck!