Heart Rate News and Research

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Heart rate is determined by the number of heartbeats per unit of time, typically expressed as beats per minute (BPM), it can vary with as the body's need for oxygen changes, such as during exercise or sleep.

Study shows how men and women differ in their neural responses to psychological stress

According to a study that appears in the current issue of SCAN (Social Cognitive and Affective Neuroscience), researchers at the University of Pennsylvania School of Medicine discuss how men and women differ in their neural responses to psychological stress.

20 Nov 2007

Survey shows perceptions of stress among pathology residents

Researchers from Boston University School of Medicine (BUSM) conducted a nationwide survey to identify stressors perceived by pathology residents. The survey appears online in the December issue of the American Journal of Clinical Pathology.

16 Nov 2007

Heart rate patterns before birth provide clues to children's later development

Variations in heart rate patterns provide information on how the nervous system functions in adults and children. Obstetricians have long considered heart rate patterns to be important indicators of fetal well-being during the prenatal period as well as in labor and delivery.

16 Nov 2007

High energy drinks may be dangerous for some

A study by researchers in the U.S. has found that for some people high energy drinks may be dangerous.

13 Nov 2007

Energy drinks raise blood pressure

Downing an “energy drink” may boost blood pressure as well as energy, researchers said in a small study presented at the American Heart Association's Scientific Sessions 2007.

6 Nov 2007

Link between sleep apnea and increased heart rate variability

A sleep-related breathing disorder, common in heart failure, increases one's heart rate variability.

2 Nov 2007

Breakthrough reveals important human receptor structure that will aid drug development

Scientists at the MRC Laboratory of Molecular Biology (LMB) in Cambridge have obtained the first clear images of the proteins that relay vital messages to cells.

22 Oct 2007

Medsafe warns of "natural health" hazards

The New Zealand Ministry of Health's medicines and medical devices regulator Medsafe is warning New Zealanders to be aware of what they're buying when shopping for herbal remedies, following charges brought against a Chinese herbalist in Auckland.

19 Oct 2007

Mental disorders are disorders of the brain

Depression, anxiety disorders such as panic disorder and obsessive-compulsive disorders, alcohol and drug dependence, dementia and Parkinson's disease are just a few examples of "disorders of the brain".

17 Oct 2007

Modafinil effective treatment for excessive sleepiness

A study published in the October 15 issue of the Journal of Clinical Sleep Medicine (JCSM) finds that modafinil is well-tolerated in the treatment of excessive sleepiness associated with disorders of sleep and wakefulness such as shift work sleep disorder, obstructive sleep apnea (OSA) and narcolepsy, and does not affect cardiovascular or sleep parameters.

16 Oct 2007

Siestas and heart health

Where does the benefit lie in an afternoon nap? Is it in the nap itself--or in the anticipation of taking a snooze? Researchers in the United Kingdom have found that the time just before you fall asleep is where beneficial cardiovascular changes take place.

16 Oct 2007

Depression among patients with coronary artery disease

Depression has long had a popular link to cardiovascular disease and death. However, only during the last 15 years scientific evidence supporting this common wisdom has been available (Glassman et al., 2007a).

16 Oct 2007

Picking the right stress test for heart disease risk analysis

Stress tests are good front-line tests indicators of heart disease, but just how good depends on ordering the right one, researchers say.

12 Oct 2007

The highs and lows of drug cravings

The anticipation of a cocaine fix and the actual craving to abuse the drug are two closely related phenomena, according to new evidence published in the online open access journal Substance Abuse Treatment, Prevention, and Policy.

11 Oct 2007

Public misled and confused about exercise

The researchers from Exeter and Brunel Universities found in a survey of nearly 1,200 people that half of the men and three quarters of the women involved thought moderate exercise conferred the greatest health benefits.

10 Oct 2007

Stress and disease likely linked

A new commentary in the Oct. 10 edition of the Journal of the American Medical Association explores whether psychological stress leads to disease and concludes that the link is likely.

10 Oct 2007

M-POSSUM evaluation system improves accuracy and effectiveness of the original system

Based on POSSUM, a system suggested by some British scholars more than 10 years ago, a team led by Dr. Lian-An Ding has established the M-POSSUM evaluation system with the aim of improving the accuracy and effectiveness of the original system.

10 Oct 2007

Sex after chronic heart failure

Although medication can help extend the lives of men with chronic heart failure, several factors associated with this disease can interfere with a person's ability to engage in and enjoy sexual activities.

4 Oct 2007

Tips to manage stress

When stress never seems to go away, health can suffer. The October issue of Mayo Clinic Health Letter offers an overview of stress, the good, the bad and ways to reduce its ill effects.

4 Oct 2007

Algorithms for defibrillators

When an adult suffers a cardiorespiratory arrest the rapid application of an electrical discharge with a defibrillator can avoid sudden death in many cases. Nevertheless, defibrillation also has its impediment or enemy: time.

3 Oct 2007