Each myosin thick filament is surrounded by actin thin filaments, and each thin filament is surrounded by thick filaments. Several of these filament bundles make up the functional portion of a muscle cell. It is also important to note that the thin filaments are attached to a very dense protein plate called a Z disc.
Back to articles. Stress plays a major part in the health of our skin. When we are stressed, a hormone called cortisol is released, causing many things to occur in our bodies, including accumulating fat, as well as make your skin very dry, oily, wrinkled, or full of acne. One stress effect on the skin is wrinkling.
Research reveals that environments can increase or reduce our stress, which in turn impacts our bodies. What you are seeing, hearing, experiencing at any moment is changing not only your mood, but how your nervous, endocrine, and immune systems are working. The stress of an unpleasant environment can cause you to feel anxious, or sad, or helpless. This in turn elevates your blood pressure, heart rate, and muscle tension and suppresses your immune system. A pleasing environment reverses that. And regardless of age or culture, humans find nature pleasing.