You monitor your heart rate. You feel your breathing rate increase. Your legs and arms are moving furiously to keep up the intensity of your exercise. Thankfully, you don't have to concentrate on your heart and lungs to circulate the oxygen-rich blood for your workout; they just do it. An understanding of five functions of your cardiovascular system during exercise will ultimately improve your workout and help you reach your goals as you use your heart rate to your advantage.| Sciencing
Sciencing offers informative articles, instructional guides, and cutting-edge answers to pressing questions about science, engineering, and mathematics.| Sciencing
If you've ever looked for health supplements, you've probably heard of peptides. Research on is still ongoing, but here are some of the most promising ones.| Sciencing
Thanks to sleep researchers, editing and erasing bad memories has stepped from science fiction and into reality, and it could revolutionize mental healthcare.| Sciencing
Plenty of people are invested in finding ways to live longer, but there are plenty of familiar habits that work against that goal. Here are a few of them.| Sciencing
Sciencing offers informative articles, instructional guides, and cutting-edge answers to pressing questions about science, engineering, and mathematics.| Sciencing
Each cell's nucleus contains chromosomes made up of DNA strands. They contain the genetic material that determines an organism's traits and are passed on to offspring. Cats each have a set number of chromosomes that include a pair of sex chromosomes known as X and Y. Chromosomes occur in pairs, with one of each pair coming from the mother and the other from the father. Genes at corresponding locations on each pair affect the same trait, and together determine the cat's color, fur length and o...| Sciencing
Human Evolution: Timeline, Stages, Theories & Evidence| Sciencing
There's a good chance you've heard of Neanderthals when it comes to ancient human species, but they aren't the only ones who have appeared in the fossil record.| Sciencing
Sciencing offers informative articles, instructional guides, and cutting-edge answers to pressing questions about science, engineering, and mathematics.| Sciencing
Sciencing offers informative articles, instructional guides, and cutting-edge answers to pressing questions about science, engineering, and mathematics.| Sciencing
No one wants to get too little sleep, but more and more evidence indicates that too much sleep can have a cascade of bad health outcomes.| Sciencing
Sciencing offers informative articles, instructional guides, and cutting-edge answers to pressing questions about science, engineering, and mathematics.| Sciencing
Among all the domestic cats, the Maine Coon is the largest, weighing up to 20 pounds and reaching over 4 feet in length.| Sciencing
Sciencing offers informative articles, instructional guides, and cutting-edge answers to pressing questions about science, engineering, and mathematics.| Sciencing
From Neanderthals to Denisovans, the human family tree is more complicated, and varied, than you may realize.| Sciencing