The symptoms: The woman visited a clinic because she had long experienced bursts of uncontrollable laughter, which doctors described as "mirthless" in a report of her case. According to the patient, ...

Uncontrolled laughing or crying can be more than just a surprising emotional reaction, it may signal a neurological condition called pseudobulbar affect (PBA). PBA causes sudden, involuntary emotional ...

Listen up, pregnant people! The babies want you to see something. Vnosokin / Getty Images So, grab your jar of pickles and — whatever you do — do not laugh at what you are about to see. Fotografia Inc ...