Strength training
Learning Center
Cellulitis infection: Is it contagious?
Cellulitis — a common, potentially serious bacterial skin infection — is not directly contagious.
COVID-19 and pets: Can dogs and cats get COVID-19?
Find out how COVID-19 can affect dogs and cats, what you can do to protect your pet, and how to care for your pet if it becomes sick.
Bump on the head: When is it a serious head injury?
Even a minor injury to the scalp or forehead can cause a large lump. Find out when it's time to see a healthcare professional.
Bulging disk vs. herniated disk: What's the difference?
Compared with a bulging disk, a herniated disk is more likely to cause pain because it protrudes farther and is more likely to compress nerve roots.
Body-weight training: Is it effective for strength training?
Body-weight training — Try out this alternative form of strength training.
Blood pressure: Is it affected by cold weather?
Blood pressure generally is higher in the winter than in the summer. Discover why.
Bladder outlet obstruction: Causes in men?
Find out more about the causes of male bladder outlet obstruction and possible next steps.
Bladder infection in men
Although women are more likely to get bladder infections, men can get them, too. Learn about signs and symptoms and what could put you at risk.
Barrel chest: What causes it?
Barrel chest isn't a disease, but it may indicate an underlying condition, such as chronic obstructive pulmonary disease (COPD).
Bacterial vs. viral infections: How do they differ?
Understand the differences between bacterial and viral infections.
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