According to Scientific American, spring fever is a real phenomenon, and a colloquial term used to describe a feeling of increased energy, restlessness, and optimism that often occurs in the spring season. Symptoms can include a flushed face, increased heart rate, appetite loss, and daydreaming.

While spring fever is not a medically recognized condition, there are scientific explanations for why people may experience these symptoms.

Increased sunlight

Longer days and increased sunlight exposure lead to increased production of serotonin, a hormone that promotes mood and well-being.

Changes in weather

Warmer temperatures and blooming flowers can stimulate the senses and make people feel more positive.

Seasonal allergies

Some people may experience mild allergic reactions in the spring, which can contribute to feelings of fatigue and congestion.

Psychological factors

The anticipation of new beginnings and the end of winter can also play a role in boosting mood and energy levels.

Michael Terman, director of the Center for Light Treatment and Biological Rhythms at Columbia University Medical Center, says that spring fever is not really a medical condition. However, Terman says the feeling begins with an unpredictable fluctuating mood and energy state that is very different from, and in strong contrast to, the low mood people often experience in winter. Also, while lightheadedness is not directly mentioned as a symptom of spring fever, the increased heart rate and flushed face might contribute to a sensation of lightheadedness for some individuals. Additionally, mild allergic reactions and changes in weather can affect one’s equilibrium.

It’s important to note that not everyone experiences spring fever. However, for those who do, it can be a pleasant and refreshing experience that marks the transition from winter to spring.