What’s wrong with dizziness and nausea on a bike?

Cycling dizziness and nausea may be caused by insufficient blood supply to the brain, cervical spondylosis, migraine and other reasons.
1. Insufficient blood supply to the brain: If the speed of bicycling is too fast and the amount of exercise is too large, it is easy to cause more blood to be distributed to the limbs during bicycling, resulting in a relative lack of blood supply to the brain, which may cause dizziness and nausea.
2. Cervical spondylosis: If there is a history of cervical spondylosis, riding a bicycle for a long time, due to improper neck posture, is likely to cause cervical spondylosis recurrence, resulting in local vertebral artery compression, which may cause dizziness and nausea.
3. Migraine: If there is a history of migraine, cycling for a long time by the cold wind, it is likely to trigger a migraine attack, may cause dizziness, nausea, may also be accompanied by headache, photophobia, photophobia and other symptoms.
Cycling dizziness, nausea, it is recommended to stop cycling in a timely manner, if necessary, need to seek medical attention as soon as possible.