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Thus, gases (such as O2 and CO2), hydrophobic molecules (such as benzene), and small polar but uncharged molecules (such as H2O and ethanol) are able to diffuse across the plasma membrane. Other biological molecules, however, are unable to dissolve in the hydrophobic interior of the phospholipid bilayer.
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Good hygiene lowers your risk for diseases and illnesses commonly spread through viruses and bacteria. Your hands come into contact with bacteria every time you cough, use the restroom, touch your pet, or touch surfaces, such as stair railings, used frequently by others
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<em>Most of us have heard of physical therapists, athletic trainers, nutritionists, and coaches — and we have a pretty solid grasp on what they do in their day-to-day work. But, for many people, exercise physiology is a different animal. You may have heard of exercise physiology but few truly understand even the basics about this multifaceted healthcare career. </em>
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<em>Put simply, exercise physiologists help people become their best physical selves. The profession can be as varied as helping athletes reach peak fitness; guiding people in their journeys to lose weight, or rehabilitating patients suffering from chronic illness.
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<em>But there's so much more than that. To help shed some light on this complex field of study, we compiled a broad overview of this rewarding career — complete with some basic definitions and distinctions between some of the confusing and similar-sounding fields.</em>
An infection including viruses or bacteria
