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Early birds and night owls are born, not made. Sleep patterns may be the most obvious manifestation of the highly individualized biological clocks we inherit, but these clocks also regulate bodily functions from digestion to hormone levels to cognition. Living at odds with our internal timepieces, Till Roenneberg shows, can make us chronically sleep deprived and more likely to smoke, gain weight, feel depressed, fall ill, and fail geometry. By understanding and respecting our internal time, we can live better.Internal Time combines storytelling with accessible science tutorials to explain how our internal clocks work-for example, why morning classes are so unpopular and why "lazy" adolescents are wise to avoid them. We learn why the constant twilight of our largely indoor lives makes us dependent on alarm clocks and tired, and why social demands and work schedules lead to a social jet lag that compromises our daily functioning.Many of the factors that make us early or late "chronotypes" are beyond our control, but that doesn't make us powerless. Roenneberg recommends that the best way to sync our internal time with our external environment and feel better is to get more sunlight. Such simple steps as cycling to work and eating breakfast outside may be the tickets to a good night's sleep, better overall health, and less grouchiness in the morning.

Chronobiology. --- Biological rhythms. --- Biological clocks --- Biology --- Biorhythms --- Endogenous rhythms --- Living clocks --- Rhythms, Biological --- Chronobiology --- Cycles --- Pacemaker cells --- Biological time --- Time --- Periodicity

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Biological rhythms --- Stress (Physiology) --- 159.91 --- Physiological stress --- Tension (Physiology) --- Adaptation (Biology) --- Biological clocks --- Biology --- Biorhythms --- Endogenous rhythms --- Living clocks --- Rhythms, Biological --- Chronobiology --- Cycles --- Pacemaker cells --- Psychofysiologie. Neuropsychologie. Psychomotoriek. Psychomotorische therapie --- Periodicity --- 159.91 Psychofysiologie. Neuropsychologie. Psychomotoriek. Psychomotorische therapie

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The development of a bio-engineered pacemaker is of substantial clinical and also scientific interest because it promises to overcome several limitations of electronic pacemakers. Moreover it may answer the longstanding question of whether the complex structure of the sinus node is indeed a prerequisite for reliable pacemaking, or simpler structures might work as well. This book gives an overview of the current state-of-the-art of creating a bio-engineered pacemaker. It shows the approaches to develop of genetic and cell-based engineering methods suitable to implement them with safety and stability. It also illuminates the problems that need to be solved before bio-pacemaking can be considered for clinical use.

Biological rhythms. --- Pacemaker cells. --- Mathematical Sciences --- Applied Mathematics --- Engineering. --- Human physiology. --- Cardiology. --- Application software. --- Biophysics. --- Biological physics. --- Biomedical engineering. --- Biomedical Engineering. --- Human Physiology. --- Computer Applications. --- Biophysics and Biological Physics. --- Clinical engineering --- Medical engineering --- Bioengineering --- Biophysics --- Engineering --- Medicine --- Biological physics --- Biology --- Medical sciences --- Physics --- Application computer programs --- Application computer software --- Applications software --- Apps (Computer software) --- Computer software --- Heart --- Internal medicine --- Human biology --- Physiology --- Human body --- Construction --- Industrial arts --- Technology --- Diseases --- Biological pacemakers --- Natural pacemakers --- Pacemakers, Biological --- Cells --- Biological rhythms --- Biological clocks --- Biorhythms --- Endogenous rhythms --- Living clocks --- Rhythms, Biological --- Chronobiology --- Cycles --- Pacemaker cells --- Periodicity --- Computer science. --- Biomedical Engineering and Bioengineering. --- Biological and Medical Physics, Biophysics. --- Informatics --- Science

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Animal physiology. Animal biophysics --- Plant physiology. Plant biophysics --- Biological rhythms --- 57.034 --- Biological clocks --- Biology --- Biorhythms --- Endogenous rhythms --- Living clocks --- Rhythms, Biological --- Chronobiology --- Cycles --- Pacemaker cells --- Cyclic variations, oscillation. Rhythmicity. --- Periodicity --- 57.034 Cyclic variations, oscillation. Rhythmicity. --- Cyclic variations, oscillation. Rhythmicity

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Biological rhythms --- -Fishes --- -57.034 --- 597 --- Fish --- Pisces --- Aquatic animals --- Vertebrates --- Fisheries --- Fishing --- Ichthyology --- Biological clocks --- Biology --- Biorhythms --- Endogenous rhythms --- Living clocks --- Rhythms, Biological --- Chronobiology --- Cycles --- Pacemaker cells --- Congresses --- Behavior --- -Congresses --- Physiology --- Cyclic variations, oscillation. Rhythmicity. --- Pisces. Fishes. Ichthyology --- Periodicity --- 597 Pisces. Fishes. Ichthyology --- 57.034 Cyclic variations, oscillation. Rhythmicity. --- Fishes --- 57.034 --- Behavior&delete& --- Physiology&delete& --- Cyclic variations, oscillation. Rhythmicity