Bear markets are notoriously nerve racking with each drawdown presenting its own set of unique circumstances. Click to read.

Wonder why babies nap on some days but not on others? Or why older people wake up earlier? Mathematical modelling of sleep regulation provides some surprising answers to these and other questions, ...

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The president’s use of migrants as bargaining chips will corrode international politics. By Jeff Crisp A newly enacted “visa integrity fee” will apply to millions of foreign visitors ...