Idiopathic hypersomnia is a chronic sleep-wake disorder that causes you to feel excessively sleepy during the day, even with a full night’s sleep. Most people experience daytime sleepiness at ...

Idiopathic pulmonary fibrosis (IPF) is a rare condition where the lungs become scarred, making it hard to breathe. The cause of the disease is unknown, which is why it is called ‘idiopathic.’ So far, ...

The retina is the part at the back of our eyes that detects light and sends this information to our brain. Within the retina is a layered structure containing the light-sensitive cells, known as the ...

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