What might the world look like if temperatures keep rising? Neil and Alice discuss the need to adapt to the changes ahead ...

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Crying for no reason can be caused by depression, including symptoms like sleep troubles and feelings of emptiness. Hormonal changes during pregnancy or menstruation might lead to unexplained crying ...

Inappropriate laughter is uncontrollable laughing that can happen at the wrong time or place. Pseudobulbar affect is a syndrome that may cause inappropriate laughter and crying. Neurologic disorders ...