Mayo Clinic 
Mayo Clinic specialists answer health questions.
Updated: 18 min 48 sec ago
Migraines: Are they triggered by weather changes?
Can weather changes trigger migraines? Learn more.
Blood pressure medications: Can they raise my triglycerides?
Some blood pressure medications can increase triglyceride levels. Find out more.
Herbal treatment for anxiety: Is it effective?
Herbal treatment may help with mild anxiety. A Mayo Clinic expert discusses what works and what's safe.
Antibiotics and alcohol: Should I avoid mixing them?
The effects of combining antibiotics and alcohol can vary, depending on the specific antibiotic.
Will an air purifier remove cigarette smoke?
Despite the claims, an air purifier can't eliminate cigarette smoke from your home.
X-ray during pregnancy: Is it safe?
X-ray during pregnancy — A Mayo Clinic specialist explains the risks and benefits.
Concussion in children: What are the effects?
Concussion in children — A Mayo Clinic specialist explains the effects of concussion in children.
Menstrual cup: Good alternative to tampons?
A menstrual cup is worn inside the vagina to collect menstrual fluid.
Uncircumcised penis: Is special care needed?
Clean an uncircumcised penis with soap and water like you would any other body part.
CortiSlim: Can cortisol blockers help with weight loss?
Makers of cortisol blockers want you to believe that stress hormones make you fat.
Macrocytosis: What causes it?
Enlarged red blood cells (macrocytosis) can be due to many factors.
Canola oil: Does it contain toxins?
Health concerns regarding canola oil that are being circulated on the Internet are unfounded.
Polypill: Does it treat heart disease?
The polypill contains small doses of several commonly prescribed heart disease medications.
Chronic stress: Can it cause depression?
Chronic stress — A possible factor in the development of depression.
Gallbladder cleanse: A 'natural' remedy for gallstones?
A gallbladder cleanse is a popular alternative remedy for gallstones. But does it work?
Statins: Do they cause ALS?
Statins can cause muscle injury in some people. But can they also trigger ALS?
Valerian: A safe and effective herbal sleep aid?
Valerian — Can this sleep aid help you sleep better?
Do weight-loss products like Sensa work?
Weight-loss products such as Sensa claim to decrease appetite, but the proof is slim.
The Cookie Diet: Can it help you lose weight?
The Cookie Diet sounds appealing, but can cookies lead to sustainable weight loss?
HER2-positive breast cancer: What is it?
HER2-positive breast cancer tends to be more aggressive than other types of breast cancer.