![]() ![]() For example, the finding could be a result of chance, or the true risk factor could be something other than the suspected risk factor. Such studies, on their own, cannot prove that a behavior or substance causes cancer. These studies may show that the people who develop cancer are more or less likely to behave in certain ways or to be exposed to certain substances than those who do not develop cancer. ![]() In these studies, scientists look at large groups of people and compare those who develop cancer with those who don’t. Most cancer risk (and protective) factors are initially identified in epidemiology studies. (See the Hereditary Cancer Syndromes section for more information about inherited genetic mutations that can cause cancer.) A family history of certain cancers can be a sign of a possible inherited cancer syndrome. They also include things people cannot control, like age and family history. These are sometimes called protective risk factors, or just protective factors.)Ĭancer risk factors include exposure to chemicals or other substances, as well as certain behaviors. (There are also factors that are linked to a lower risk of cancer. But research has shown that certain risk factors may increase a person’s chances of developing cancer. It is usually not possible to know exactly why one person develops cancer and another doesn’t. Learn more from this Did You Know? video produced by NCI's Surveillance, Epidemiology, and End Results (SEER) program. articles/10.3389/, weight, exposure to carcinogens, and genetics can increase the risk of developing cancer. The role of diet, eating behavior, and nutrition intervention in seasonal affective disorder: A systematic review. genetics/condition/seasonal-affective-disorder/ health/publications/seasonal-affective-disorder Seasonal difference in brain serotonin transporter binding predicts symptom severity in patients with seasonal affective disorder. Seasonal affective disorder: Common questions and answers. blog/seasonal-affective-disorder-spotlight 6 questions answered: Seasonal affective disorder.You can learn more about how we ensure our content is accurate and current by reading our editorial policy. Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. This therapy may work best in combination with other treatments, like medications. Light therapy should be used only under a doctor’s supervision and on approved devices. It uses a timer-activated light to mimic the sunrise, which helps to stimulate the body’s clock. are sensitive to light due to other medicationsĪnother similar treatment option is a dawn simulator.You may need to avoid light therapy if you: Side effects of light therapy may include dizziness, eye fatigue, or headaches. This involves using a specialized light box for at least 30 minutes each day during the winter to replicate natural light. Light therapyĪnother treatment for wintertime SAD is light therapy. Healthy lifestyle habits, like getting regular exercise and sun exposure, may also help minimize SAD symptoms. However, some research indicates that these supplements may not be effective, and more studies need to be done. Vitamin D supplements are sometimes used to treat SAD as well. Talk with your doctor about which medication may be best to treat your symptoms. Some people also benefit from medications such as antidepressants. One common treatment, cognitive behavioral therapy (CBT), can help people with SAD learn to focus on positive thoughts and activities rather than negative ones. SAD can be treated with counseling, medications, and therapy. How is seasonal affective disorder treated? ![]()
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