RSS Recent Posts by Arlene Taylor

  • Retina and the CNS July 18, 2019
    When sunlight enters the eye, it strikes the light-sensitive retina. Remember, the retina is part of the central nervous system (CNS) and is connected to the brain via the optic nerve. The retina contains different types of cells. The photoreceptor cells are sensitive to light. I’m sure you’ve heard of rods and cones. These cells […]
  • Blue Light Waves and the Brain July 17, 2019
    No doubt you noticed the band of blue light on the drawing of the electromagnetic spectrum. Blue light has one of the shortest and highest-energy wavelengths. Blue light waves are everywhere. Did you ever wonder the reason the sky looks blue? When the sun’s rays travel through the atmosphere, the high-energy blue waves crash into […]
  • Electromagnetic Spectrum and the Eye July 16, 2019
    The human eye is sensitive to only one part of the electromagnetic spectrum: visible light. Light is made up of electromagnetic particles that travel in waves. Every wavelength is represented by a different color. The human eye is able to “see” colors in the visible light portion of the spectrum. (An exception is an eye […]
  • Electromagnetic Spectrum, 2 July 15, 2019
    Together, these eight types of identified electromagnetic waves comprise the electromagnetic spectrum (and there could be some that research has not yet described). These waves have differing pluses and minuses for human beings. Gamma rays, X-rays, and high ultraviolet wavelengths are classified as ionizing radiation because their photons have enough energy to cause chemical reactions. […]
  • Electromagnetic Spectrum July 12, 2019
    The electromagnetic spectrum is the range or spectrum of frequencies related to electromagnetic radiation, their respective wavelengths, and their energies. The wave frequencies are said to range from below one hertz to above 10 hertz, corresponding to wavelengths from thousands of kilometers down to a fraction of the size of an atomic nucleus. This frequency range […]
  • Sleepwalking and Anxiety July 10, 2019
    If you can figure it out and resolve it, or at least discuss it reassuringly with the child if it cannot be resolve, this may help to relieve some of the anxiety. Sometimes preschoolers sleepwalk as the function of imagination begins to develop. In general, sleepwalking among children tends to peak during preschool years and […]
  • Sun, Summer, and the Brain July 10, 2019
    Nothing much on Planet Earth would live without the sun: people, creatures, plants, organisms in and out of the sea, and so on. Summer is here and the days are longer, which allows for more exposure to sunlight. Its benefits have been widely touted, including light during the day and reflected moonlight at night. Warmth […]
  • Contributors to Sleepwalking July 9, 2019
    There may be several contributors to sleepwalking. For example, did something change in the child’s life? ·       Has she been given a new chore and is anxious about doing it right. ·       Has the family recently move to a new house or relocated to a different city? ·       Has the child changed schools or moved […]
  • Sleepwalking and Envionmental Factors July 8, 2019
    Is sleepwalking in offspring is inevitable? Apparently not. It is likely that heritable factors predispose an individual to develop sleepwalking (and/or night terrors), but the actual exhibition of the trait may be influenced by environmental factors. As to "why" sleepwalking happens, general consensus is that there is a reason. Behaviors do not erupt from a […]
  • Sleepwalking and Genetics July 5, 2019
    Sleepwalking tends to run in families. Children whose parent(s) sleepwalked in childhood are more likely to do so. A study published in the British Journal of Psychology concluded that a first-degree relative of a sleepwalker is ten times more likely to sleepwalk than the rest of the population. A separate study published in the journal […]