x …about Antibody-Based Drugs . . . . . . . . . . . . . . . .495 …about Bioengineering Red Blood Cells to Create an Unlimited Supply . . . . . . . . . . . . . . . . . . . . . . .384 …about Body Fluids . . . . . . . . . . . . . . . . . . . . . . . . .562 …about Checkpoint Inhibitors . . . . . . . . . . . . . . . . . .65 …about Concussions . . . . . . . . . . . . . . . . . . . . . . . .247 …about Egg Freezing as a Solution for Infertility . . . .623 …about Exercise-Induced Asthma . . . . . . . . . . . . . .364 …about Extending Life Expectancy of Patients with Sickle Cell Anemia . . . . . . . . . . . . . . . . . . . .402 …about Fast- and Slow-Twitch Muscles . . . . . . . . . .185 …about Genetic Research and Cancer Treatment Breakthroughs . . . . . . . . . . . . . . . . . . . . . . . . . . .628 …about Glycogen Storage Diseases. . . . . . . . . . . . . . .44 …about High-Risk HPVs and Cancer . . . . . . . . . . . .105 …about Homeostatic Mechanisms during Distance Running . . . . . . . . . . . . . . . . . . . . . . . . . .17 …about How the Hearts of Athletes Adapt to Exercise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .419 …about How Transplanted Hearts Function . . . . . . .445 …about Integrating Physical and Chemical Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 …about Low Back Pain (LBP) . . . . . . . . . . . . . . . . . .203 …about Managing Diabetes with Diet and Exercise . . .328 …about Measuring Nerve Impulses . . . . . . . . . . . . .227 …about Paired Kidney Transplants . . . . . . . . . . . . . .577 …about Physical Activity and Bones . . . . . . . . . . . . .129 …about Preventing Osteoporosis . . . . . . . . . . . . . . .159 …about Radioactivity in Healthcare . . . . . . . . . . . . .626 …about Research . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 …about Sense of Smell in Animals . . . . . . . . . . . . . .287 …about Studying the Brain . . . . . . . . . . . . . . . . . . .235 …about Tone Deafness . . . . . . . . . . . . . . . . . . . . . .281 …about Why Records Are Not Broken on Hot, Humid Days . . . . . . . . . . . . . . . . . . . . . . . . . . . . .432 Blood Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . . .395 Cardiovascular Disorders . . . . . . . . . . . . . . . . . . . . .442 Digestive Disorders . . . . . . . . . . . . . . . . . . . . . . . . .536 Ear Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .279 Endocrine Disorders . . . . . . . . . . . . . . . . . . . . . . . . .320 Eye Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .268 Immune System Disorders . . . . . . . . . . . . . . . . . . . .492 Mouth Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . .289 Muscle Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . .200 Nervous System Disorders . . . . . . . . . . . . . . . . . . . .245 Reproductive Disorders . . . . . . . . . . . . . . . . . . . . . .620 Respiratory Disorders . . . . . . . . . . . . . . . . . . . . . . . .357 Skeletal Disorders. . . . . . . . . . . . . . . . . . . . . . . . . . .155 Skin Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101 Urinary Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . .571 What Research Tells Us CLINICAL CASE STUDY Erickson Stock/Shutterstock.com Alex_Trakset/Shutterstock.com