The email says that the pictures are from a zoo in California where the mother tiger had lost triplets and the grieving was so bad that it began to affect her health.
It has seemed unable to have what Indiana Governor Mitch Daniels has called an "adult conversation" about the consequences of spending so much more than is taken in.
The authors wrote: 'Sudden death from overwork is often caused by stroke and is believed to result from a repetitive triggering of the stress response.
In those with early cognitive impairment, what appears to be excessive worry about, for example, the whereabouts of things is probably better regarded as realistic given the cognitive impairment.
This can be interpreted as the concept of never expecting anyone to do a task you would not willingly do yourself, whether that be excessive overtime or dealing with difficult people.
However well they are policed, major protests reinforce the impression of indifferent elites, repression of debate, overreaction to dissent, injustice and unaccountable power.
This can be a big blunder since excess washing can strip your face off its natural oil barrier. It can also make skin dry and this can be counter productive.