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Filmmaker and actress Angelina Jolie revealed on Tuesday in the New York Times that she had undergone a surgery to remove her ovaries and fallopian tubes to prevent ovarian cancer. About two years ago, the 39-year-old actress had announced that she had underwent double mastectomy to prevent breast cancer. At that time, the 'Mr. & Mrs. Smith' star had cited her elevated risk of contracting the disease.

A number of health experts and oncologists praised Jolie's decision to bring many sensitive issues into the public discussion, but it also raised concerns about the difficult decision-making process faced by a woman at risk of ovarian cancer.

Scientists have revealed through a study that collection of abnormal tau protein in the brain is the main cause of Alzheimer's disease. Amyloid is another protein which accumulates in the brain, but it is not the main cause behind the diseases which causes significant memory loss.

According to researchers, they can curb the onset of the disease by targeting tau. For the study, the researchers analyzed 1,375 brains of deceased Alzheimer's patients in the Mayo Clinic's brain bank.

Biogen, a Cambridge, Massachusetts biotech company, is also developing a drug to treat early stage Alzheimer's.

A new study conducted by researchers has revealed that consumption of fruits and vegetables in students can be increased by teaming up school's cafeteria employees with trained chefs.

The study was conducted by the researchers from Harvard School of Public Health. They found that if schools collaborate with a professional chef, it can get kids to eat healthier foods.

The researchers conducted a school-based randomized clinical trial among 14 elementary and middle schools in two urban, low-income school districts. The study involved 2,638 students in grades three through eight.

After experiencing excruciating abdominal pains for seven months, Tori Riley of O'Fallon was told by her mother to get an ultrasound and cancer was then discovered. Doctors initially thought that her pain was related to acid reflux because she was just 24 years old. But after getting the ultrasound done, she learnt that there were eight tumors in her liver. The tumors were a result of cancer in her colon.

Her mother Lisa Medders, 49, said Tori had stage IV colon cancer and had only four to six months to live. Her diagnosis brought extreme unhappiness for her family members. She died in August 2014 at the age of 26 and her death left her mother in shock.

There is good news for chocoholics as researchers at the University of Ghana have found a way to make chocolate both tasty and nutritious. Scientists explained that cocoa undergoes several steps before it takes shape as a candy bar. The cocoa beans are removed from pods while making chocolate and fermented in baskets, sun-dried afterwards. The beans are finally roasted, which brings out the flavor.

However, some of the healthful polyphenols (antioxidants) are lost during the roasting process. Therefore, the researchers want to figure out a way in order to keep hold of as much of the polyphenols and good flavors as possible.

The International Agency for Research on Cancer (IARC) experts shocked the agribusiness few days ago when it announced that two pesticides that are widely in use are carcinogenic to humans.

The international committee The Lancet and plans published a brief details explanation of its conclusions. It said that a book-length version of it will be released later this year.

The announcement soon raised several heated reaction, because one of these chemicals, is a pillar of large-scale farming.

Glyphosate which is commonly known as Roundup is the most popular weed killer in the world.