As the days get shorter and the weather grows colder, you may start to notice that you’re not as sunny as you were in the warmer months. But don’t panic, feeling down during the winter is totally normal and way more common than you would think.

Seasonal Affective Disorder or S.A.D. is a type of depression related to the changing of seasons, but takes place mostly during the colder months. You may feel a lack of energy and increased mood swings. Nicknamed the “winter blues,” people tend to brush this feeling off. However, this can do more harm than good because it is a real form of depression. Like any other disorder, it can vary in its severity. If you find that the colder months affect your personal life, it’s time to take control of the situation. Although it’s tough to walk to class when it’s cold, it shouldn’t be keeping you in your dorm room.

Some more severe symptoms could include difficulty waking up, anxiety, nausea, change in eating patterns, and difficulty concentrating. If you start to notice any of these symptoms, utilize your campus’s health services to seek some advice. Oftentimes a campus will have mental health professionals that you will be able to speak to. They will be able to give you some ideas to combat your symptoms.

On a general note, there are many preemptive steps you can take to help make the winter months easier. A trip to the gym is sure to warm you up and keep you in a good mood for the rest of the day. It’s also a great way to work off that holiday cookie weight. It’s also a good idea to maintain a steady routine. Over or under-sleeping is a great way to throw off your internal clock, leading to moodiness and lack of energy. Also, make sure you’re spending adequate time with your friends. They’ll help you pass the day and keep your spirits bright and sunny, even if it’s snowing.