Dr. John Roger Petersen PH.D.

Recommended Articles

• Study Links PTSD from 9/11 to Dementia Cases

  9/11 happened almost 17 years ago. And yet, every single American still remembers where they were on that day. Researchers found that rescuers, witnesses and survivors have reported cases of Post-Traumatic Stress Disorder, or simply PTSD. Sean Clouston, the lead researcher from Stony Brook...

• Treatment Options for Teenage Acne

  Acne is normally caused by changing levels of hormones. This is why youths develop it during puberty or before getting their periods. Hormones are the culprits because they stimulate the oil-producing glands in the skin to produce more oil, which clogs the pores on the skin surface. There are few...

• Reasons Why You Would Need a Cholecystectomy

  A cholecystectomy is a type of surgery done to remove the gallbladder. Although the gallbladder’s function is to store bile, which helps in your digestion, you can still live a healthy life without it. Gallbladder removal through surgery is the most effective treatment in dealing with gallbladder...

• What are the Stages of Multiple Myeloma?

  This is the uncommon type of cancer that forms in plasma cells. A type of white blood cells found in the body, plasma cells, identify and battle germs and infections that attack the body.In multiple myeloma patients, the healthy plasma cells are overtaken by cancer cells. This reduces the number of...

• What is a Nerve Ablation?

  Nerve ablation is the destruction of nerves to minimize particular types of chronic pain by inhibiting the transfer of pain signals. There are various ways of ablating nerves. For instance by utilizing heat, cold or chemicals.The first thing that a doctor does is discovering the nerves where the...

• What Could Scabs on Your Scalp Be Telling You?

  IntroductionThe scabs that occur on the scalp can be quite itchy, frustrating, and unsightly. Scratching the scalp can also worsen the problem along with increasing the risk of developing an infection. In most cases, the scabs on the scalp tend to clear up on their own without the use of...