Multiple concussions sustained within a short time frame can exacerbate symptoms and even cause long-term damage to your brain. According to the Centers for Disease Control (CDC), those who have experienced repeated head traumas may have long-term problems with memory, concentration, headaches, or even keeping their balance. Some may also experience longer recovery times and more severe concussion symptoms.
One of the most well-known effects of multiple concussions is CTE or chronic traumatic encephalopathy, a degenerative brain injury caused by repetitive blows to the head. Retired athletes who participated in heavy-contact sports such as football and ice hockey have reported intense bouts of depression, and dementia-like symptoms years after they have ended their sports careers. While most people will not experience concussion symptoms to this extent, it is an important disease to be aware of.