5) Key characteristics for observed vertebrate organisms.

You need regular sleep to perform optimally. You must also make time for exercise. Sure, you can do this with others, just be sure to do it, and exercise where you are benefiting and becoming healthier. It’s also important to make room for quiet time each day. Time for you to dream or think about those things that are important to you. I also suggest learning some deep breathing exercises to perform during your quiet time, you’ll be amazed at what it will do for your health and outlook on the rest of your life.