Everyone experiences stress and anxiety at one time or another. The difference between them is that stress is a response to a threat in a situation. Anxiety is a reaction to the stress.

Whether in good times or bad, most people say that stress interferes at least moderately with their lives. Chronic stress can affect your health, causing symptoms from headaches, high blood pressure, and chest pain to heart palpitations, skin rashes, and loss of sleep.

It’s natural to feel down sometimes, but if that low mood lingers day after day, it could signal depression. Major depression is an episode of sadness or apathy along with other symptoms that lasts at least two consecutive weeks and is severe enough to interrupt daily activities. Depression is not a sign of weakness or a negative personality. It is a major public health problem and a treatable medical condition.