Monday, June 29, 2015

How napping can renew you . . .



 If you’re like the average American, you are
probably sleep deprived.  Inadequate sleep reduces your concentration, alertness, creativity and performance at work.1,2  It also makes you more prone to make mistakes, feel tired, grouchy, and increases your cravings for sweet and fatty foods.3,4  
As a nation, we value doing more and place little emphasis on taking breaks, having fun and resting.  In other countries, however, working less, playing more, taking breaks and sleep are cultural norms.  Fortunately, there is a cultural shift taking place that emphasizes working smarter, taking more breaks and even napping on the job! So whether or not you believe that you get adequate sleep, you probably can benefit from adding an afternoon power nap.  

An afternoon nap, or siesta, can help you to improve your mood, alertness, vigor and be your mini vacation to relax and feel rejuvenated.5,6 It will help you be less prone to mistakes and increase your creativity as well as your job performance.7,8 In order to reap all of these health promoting benefits, just keep these simple guidelines in mind.  

Take brief naps (i.e. 10 – 30 mins) early in the afternoon (i.e., no later than 3:00 pm) to feel recharged and avoid sleep inertia (i.e., feeling groggy and possibly experiencing insomnia). And please remember to take your nap in a dark room, laying down and free of any distractions or potential interruptions.   

To your health,
Dr. Sandoval
  1. Thomas, M, Sing, H, Belenky, G, Holcomb, H, Mayberg, H, Dannals, R, et al. “Neural basis of alertness and cognitive performance impairments during sleepiness. I. Effects of 24 h of sleep deprivation on waking human regional brain activity. Journal of Sleep Research. (2000). 9 (4) 335-352. 
  2. Van Dongen, HPA, Maislin, G, Mullington, JM, and Dinges, DF. “The Cumulative Cost of Additional Wakefulness: Dose-Response Effects on Neurobehavioral Functions and Sleep Physiology from Chronic Sleep Restriction and Total Sleep Deprivation.” Sleep. (2003). 26 (2) 117-126.
  3. Rosen, I, Gimotty, PA, Shea, JA, Bellini, LM "Evolution of Sleep Quantity, Sleep Deprivation, Mood Disturbances, Empathy, and Burnout among Interns." Academic Medicine. (2006). 81 (1) 82-85.
  4. Wiley, TS & Formby, B (2001). Lights Out: Sleep, Sugar, and Survival.
  5. Milner, CE and Cote, KA.  “Benefits of napping in healthy adults: impact of nap length, time of day, age, and experience with napping.” Journal of Sleep Research.  (2009). 18 (2) 272-281.   
  6. Rosekind, MR, Smith, RM, Miller, DA, CO, EL, Gregory, KB, Webbon, LL, et al. "Alertness Management: strategic naps in operational settings."  Journal of Sleep Research. (1995). 4 (2) 62-66.
  7. Mednick, SC, Drummond, SPA Boynton, GM. “Perceptual deterioration is reflected in the neural response: fMRI study between nappers and non-nappers.” Perception. (2008). 37 (7) 1086-1097.
  8. Tietzel, AJ and Lack, LC. "The recuperative value of brief and ultra-brief naps on alertness and cognitive performance." Journal of Sleep Research. (2002). 11 (3) 213-218.
The information, published and/or made available through the www.fullofradiance.com website, is not intended to replace the services of a physician, nor does it constitute a physician-patient relationship. This blog is for informational purposes only and is not a substitute for professional medical advice. You should not use the information in this post for diagnosing or treating a medical or health condition. You should consult a physician in all matters relating to your health, particularly in respect to any symptoms that may require diagnosis or medical attention.  Any action on the reader’s part in response to the information provided in this blog is at the reader’s discretion.

Wednesday, June 17, 2015

How your brain heals with exercise . . .

If you’re like most people these days, you
probably know that regular exercise does your body good.  You know that exercise can help you gain physical strength, lose weight, improve your cardiovascular endurance and obtain that summer “beach body” that you’ve been dreaming about while sleep.  You may also know about the various benefits of exercise for your health such as how it will help you to lower your cholesterol, blood pressure and blood sugar levels.   It certainly is all over the news these days on T.V., online and media advertisements.  However, you rarely hear about how exercise is a critical element in helping you to heal your brain.  Beyond building a better “beach body” and being great for your heart, exercise is important for  protecting, building and healing  your most important muscle – your brain!

Several human and animal studies strongly suggest that exercise induces neurogenesis (i.e., the production of new brain neurons and synaptic connections), protects your brain against strokes, and helps you to preserve your memories to avoid having those senior moments.1,2,3,4  Exercise promotes the production of brain derived neurotropic factor (BDNF) and other nerve growth factors like glial cell derived neurotropic factor (GDNF), helps to raise the circulating levels of proteins like FNDC5 and helps to stimulate angio­gen­e­sis (i.e., the formation of new blood vessels that help  to improve cerebral blood flow) so it will help to repair damaged brain cells.5   Many of these effects have been demonstrated in people with Alzheimer's disease, Parkinson’s disease and Multiple Sclerosis.2,6,7 
So if you’re concerned about preserving your brain health and want to avoid having those  regrettable senior moments, it is important that you exercise regularly.  Although the research suggests that more vigorous exercise like sprinting and doing tabata training  seems to lead to greater benefits, simply walking briskly with conscious awareness (mindful walking) 3-4 times a week for 30 minutes will help you to build a better brain.  

To your health,

Dr. Sandoval


To learn more about how working with a psychologist  and holistic health coach can help you to enhance your health and wellbeing, call or email Dr. Sandoval to schedule a free consultation.

  1. Cotman, CW &  Berchtold, NC. “Exercise: a behavioral intervention to enhance brain health and plasticity.” TRENDS in Neurosciences.  (2002). 25 (6), 295-301. 
  2. Doidge, N. The Brain's Way of Healing: Remarkable Discoveries and Recoveries from the Frontiers of Neuroplasticity.  (2015).
  3. Hayes, K, Sprague, S, Guo, M, Davis, W, Friedman, A, Kumar, A, et al. “Forced, not voluntary, exercise effectively induces neuroprotection in stroke.”  Acta Neuropathologica. (2008)115, 289–296. 
  4. Praag,H, Kempermann, G & Gage, FH. “Running increases cell proliferation and neurogenesis in the adult mouse dentate gyrus” Nature Neuroscience. (1999). 2, 266 – 270. 
  5. Huh, JY, Panagiotou, G, Mougios, V, Brinkoetter, M, Vamvini, MT, Schneider, BE, et al.   “FNDC5 and irisin in humans: I. Predictors of circulating concentrations in serum and plasma and II. mRNA expression and circulating concentrations in response to weight loss and exercise.”  Metabolism. (2012) 61 (12), 1725-38. 
  6.  Ahlskog, JE.   “Does vigorous exercise have a neuroprotective effect in Parkinson disease?” Neurology.  (2011). 77 (3), 288 – 294. 
  7. Gold, SM, Schulz, KH, Hartmann, S, Mladek, M, Lang, UE, Hellweg, R, et al. Basal serum levels and reactivity of nerve growth factor and brain-derived neurotrophic factor to standardized acute exercise in multiple sclerosis and controls  Journal of Neuroimmunology. (2003). 138, (1–2), 99-105.

The information, published and/or made available through the www.fullofradiance.com website, is not intended to replace the services of a physician, nor does it constitute a physician-patient relationship. This blog is for informational purposes only and is not a substitute for professional medical advice. You should not use the information in this post for diagnosing or treating a medical or health condition. You should consult a physician in all matters relating to your health, particularly in respect to any symptoms that may require diagnosis or medical attention.  Any action on the reader’s part in response to the information provided in this blog is at the reader’s discretion.


Tuesday, June 2, 2015

What are you thankul for today?


Gratitude is holding the attitude and expression or acknowledgement of the positive aspects in your life. Acknowledging your basic needs, material goods, friends, family and loved ones that is a simple and easy practice that is custom in many world traditions.  
Several psychological studies have found that when you cultivate gratitude you are more likely to be happier, cope more adaptively and increase your relationships with the people who you love.1,2,3,4 You are also less likely to get stressed or depressed and will engage in fewer negative coping behaviors, such as substance abuse.4  

Acknowledging the positive aspects in your life can be challenging; particularly, when you focus or hold on to negative emotions like frustration, anger and resentment. Holding negative emotions towards situations and people in your life can exacerbate the painful conditions you are trying to avoid or change.

Fortunately, there are simple steps you can take to cultivate a grateful heart and reap the many psychological benefits. In order to have an attitude of appreciation, you must first release and let go of any negative emotions that you are holding on to in your life. Like any skill, you must also practice appreciation in order to cultivate an attitude of gratitude.

To help you release negative emotions, try the traditional Hawaiian practice of Hoʻoponopono. This traditional practice of forgiveness or reconciliation will help you to open your heart and mind to the many blessings in your life. It is defined in the Hawaiian Dictionary as a “mental cleansing: family conferences in which relationships were set right through prayer, discussion, confession, repentance, and mutual restitution and forgiveness.”

To practice, simply bring to your awareness the difficult situation or person with whom you are holding on to a negative emotion. As you visualize the situation or person, repeat in your mind and affirm “I’m sorry,” “Please forgive me,” “Thank you” and “I love you.” Let go of the need to find blame, be gentle and refrain from judging yourself. Continue the practice for 5 – 10 minutes. Do this every day for a few weeks and you will experience a shift in your heart and be more open and receptive to the good graces in your life.

As you let go of the negative emotions that are holding you back and cultivate gratitude, you will also want to keep a gratitude journal.  Start each morning reflecting on the people, situations or aspects of your life for which you are grateful. You can use The 5 Minute Gratitude Journal that has prompts for you to write down 2 aspects each morning. Gratitude journals have been found to help people experience more positive emotions and reduce painful feelings like depression in many psychological studies.5

To your health,
Dr. Sandoval

To learn more about how working with a psychologist  and holistic health coach can help you to enhance your health and wellbeing, call or  email Dr. Sandoval to schedule a free consultation.
  1. Algoe, Sara B.; Fredrickson, Barbara L.; Gable, Shelly L. “The social functions of the emotion of gratitude via expression.” Emotion, (2013) 13(4), 605-609.
  2. Emmons, R.A., McCullough, M.E. “Counting blessings versus burdens: An experimental investigation of gratitude and subjective well-being in daily life.”   Journal of Personality and Social Psychology. (2003) 84(2), 377-389.
  3. Gordon, A.M.; Impett, E.A.; Kogan, A.; Oveis, C.; Keltner, D. “To have and to hold: Gratitude promotes relationship maintenance in intimate bonds. “ Journal of Personality and Social Psychology (2012) 03(2) 257-274.
  4. Grant, A. M.; Gino, F. “A little thanks goes a long way: Explaining why gratitude expressions motivate prosocial behavior.” Journal of Personality and Social Psychology. (2010)  98(6), 946-955.
  5. Lyubomirsky, Sonja; Dickerhoof, Rene; Boehm, Julia K.; Sheldon, Kennon M. “Becoming happier takes both a will and a proper way: An experimental longitudinal intervention to boost well-being.” Emotion (2011)11(2), 391-402.
The information, published and/or made available through the www.fullofradiance.com website, is not intended to replace the services of a physician, nor does it constitute a physician-patient relationship. This blog is for informational purposes only and is not a substitute for professional medical advice. You should not use the information in this post for diagnosing or treating a medical or health condition. You should consult a physician in all matters relating to your health, particularly in respect to any symptoms that may require diagnosis or medical attention.  Any action on the reader’s part in response to the information provided in this blog is at the reader’s discretion.