Our internal body clocks are better programmed to help us sleep and wake up, according to our unique body chemistry and energy levels.Ignoring our internal clocks in favor of the alarm clock, and following our social obligations, sacrificing on sleep, is taking its toll on our health.

Our Internal Alarm Clock

As our sleep patterns shift, leading to poor or no rest, there are a bunch of diseases that become more likely:<ul><li>Obesity</li><li>High blood pressure</li><li>Alzheimer's disease</li><li>Metabolic imbalances and diabetes</li><li>Heart disease.</li></ul>

Poor Sleep

Irregular sleep schedules and broken sleep-wake times are not just an occasional traveling phenomenon, but a wider problem due to our social lives conflicting with our sleep patterns.

Social Jet Lag

The World Health Organization has listed night-shift work as a cause of cancer in our bodies.

Night Shifts

Travelling induced jet lag isn't the only thing that causes untimely fatigue. Ignoring your biological rhythms can lead to chronic exhaustion, too, something that feels so much like jet lag that Till Roenneberg and his team, at Ludwig-Maximilian University, in Munich, Germany, coined the term "social jet lag" in 2006.

Our Internal Alarm Clock

Why You Should Fix Your Inconsistent Sleep Schedule - Facts So Romantic - Nautilus

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The Science of Deep Sleep - Mindful

The science of jet lag... and how best to beat it

If you're just not a morning person, science says you may never be