ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

Scientifically-designed fasting diet lowers risks for major diseases

More evidence for calorie restriction’s longevity effect

Supplementation with vitamin D associated with improved testosterone, erectile function among middle...

A Little Zinc Goes a Long Way

Vitamin D deficiency increases risk of chronic headache

VIDEO: The Best Brain Foods That Help Increase Your Memory!

Get the Most From Your Green Tea

Iron (And More) For Lasting, Natural Energy

Metabolic syndrome increases the need for vitamin E

Supplement combo improves bone density, mood, in postmenopausal women

 
Print Page
Email Article

Abstract: Fatigue in a community sample of twins

  [ 17 votes ]   [ Discuss This Article ]
www.ProHealth.com • March 10, 2003


Psychol Med 2003 Feb;33(2):263-81

Sullivan PF, Kovalenko P, York TP, Prescott CA, Kendler KS.

Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA 23298-0126, USA.

BACKGROUND: Fatigue is a complex symptom associated with many physiological, psychological and pathological processes. Its correlates and typology remain inadequately understood.

METHOD: These data were from two large, longitudinal twin studies. Trained interviewers enquired as to the presence of a > or = 5 day period in the previous year of fatigue or tiredness that interfered with daily activities. A range of potential correlates was assessed in a structured interview: demography; health beliefs; the presence of nine physical disorders; mood, anxiety and addictive disorders; neuroticism and extraversion; recollections of parental rearing; and nine stressful life events. Statistical analyses included logistic regression, CART, MARS, latent class analysis and univariate twin modelling.

RESULTS: Data were available for interfering fatigue (IF) on 7740 individual twins (prevalence 9.9% in the previous year). IF was significantly associated with 42 of 52 correlates (most strongly with major depression, generalized anxiety disorder, reported major health problems and neuroticism). Multivariate analyses demonstrated that IF is a highly complex construct with different sets of correlates in its subtypes. There were two broad clusters of correlates of IF: (a) major depression, generalized anxiety disorder and neuroticism; and (b) beliefs of ill health coexisting with alcoholism and stressful life events. Twin analyses were consistent with aetiological heterogeneity--genetic effects may be particularly important in women and shared environmental effects in men.

CONCLUSIONS: IF is a complex and common human symptom that is highly heterogeneous. More precise understanding of the determinants of IF may lead to a fuller understanding of more extreme conditions like chronic fatigue syndrome.

PMID: 12622305 [PubMed - in process]




Post a Comment

Featured Products From the ProHealth Store
Mitochondria Ignite™ with NT Factor® Ultra ATP+, Double Strength FibroSleep™

Looking for Vitamins, Herbs and Supplements?
Search the ProHealth Store for Hundreds of Natural Health Products


Article Comments



Be the first to comment on this article!

Post a Comment


 
NAD+ Ignite with Niagen

Featured Products

Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium

Natural Remedies

Block food Cravings At Their Molecular Root Block food Cravings At Their Molecular Root
Herbal Inflammation Management for Whole Body Health Herbal Inflammation Management for Whole Body Health
Restoring Gut Health: How to Create a Firewall Against Toxins Entering the Gut Wall Restoring Gut Health: How to Create a Firewall Against Toxins Entering the Gut Wall
Quercetin: Natural Support for Allergy & Inflammation Relief and More Quercetin: Natural Support for Allergy & Inflammation Relief and More
Fight Inflammation and Promote Cognitive Health with High-OPC Grape Seed Fight Inflammation and Promote Cognitive Health with High-OPC Grape Seed

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE TO OUR NEWSLETTERS
Get the latest news about Fibromyalgia, M.E/Chronic Fatigue Syndrome, Lyme Disease and Natural Wellness

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2017 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map