3D Movies Can Make You Sick
Watching 3D movies can "immerse" you in the experience, but it can also lead to visual symptoms and even motion sickness. Symptoms related to 3D viewing are affected by where you sit while watching, and even how old you are.
Researcher by Shun-nan Yang says, "Younger viewers incurred higher immersion but also greater visual and motion sickness symptoms in 3D viewing. Both problems will be reduced if a farther distance and a wider viewing angle are adopted."