Caffeine News and Research

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Caffeine is a bitter substance found in coffee, tea, soft drinks, chocolate, some nuts and certain medicines. It has many effects on the body's metabolism, including stimulating the central nervous system. This can make you more alert and give you a boost of energy.

Healthy eating lowers risk of sleep apnea

Study analyzed the relationship between diet quality and sleep outcomes in the Bogalusa Heart Study. The results suggest that higher diet quality is associated with a lower risk of sleep apnea.

27 Apr 2023

Machine learning methods may be effective in screening patients for sleep disorder risk

A machine learning model can effectively predict a patient's risk for a sleep disorder using demographic and lifestyle data, physical exam results and laboratory values, according to a new study published this week in the open-access journal PLOS ONE by Samuel Y. Huang of Virginia Commonwealth University School of Medicine, and Alexander A. Huang of Northwestern Feinberg University School of Medicine, US.

12 Apr 2023

Study finds higher BMI and smoking increased time to conception

Researchers evaluate the effect of lifestyle behaviors on various fertility and reproductive outcomes.

10 Apr 2023

Does higher caffeine and coffee intake impact colonic microbiota composition and diversity?

Researchers investigated the association between caffeine and the colonic microbiome.

6 Apr 2023

Anxiety attack or panic attack: Both may have come from the brain

An attack can come crashing in like a storm on a clear spring day. In an instant, your heart pounds, sweat soaks you and you struggle to breathe.

29 Mar 2023

Blood biomarkers could be used to predict a person's likelihood of developing PTSD

A new study found that people who are currently suffering or face a high risk of post-traumatic stress disorder show particular patterns in four biomarkers measurable with a simple blood test.

28 Mar 2023

Despite raising LDL levels, coffee lowers systolic and diastolic blood pressure

Researchers performed a cross-sectional analysis of the general population of Hamburg City, Germany.

27 Mar 2023

Higher plasma caffeine concentrations might reduce body fat and type 2 diabetes risk

In a recent study published in the journal BMJ Medicine, researchers in the United Kingdom and Sweden investigated the probable causality of long-term serum caffeine concentrations on type 2 diabetes (T2D), adiposity, and major cardiovascular diseases (CVDs).

22 Mar 2023

Gut microbiota-derived biomarkers for identifying patients with fatty liver disease

A recent study at the University of Jyväskylä (Finland) compared the gut microbiota and gut-derived metabolites between healthy controls and individuals with fatty liver.

21 Mar 2023

Green tea holds potential as treatment for uterine fibroids, PCOS, and menopausal symptoms

In a recent study published in the journal Nutrients, researchers at Johns Hopkins Medicine reviewed the beneficial properties of green tea in alleviating symptoms of benign gynecological disorders.

21 Mar 2023

Shorter ejaculation abstinence times linked to better reproductive outcomes during fertility treatments

Researchers evaluate the association between ejaculatory abstinence time, rates of pregnancies and live births, and DNA fragmentation.

20 Mar 2023

Higher plasma caffeine levels may reduce adiposity and risk of type 2 diabetes

A high blood caffeine level might curb the amount of body fat a person carries and their risk of type 2 diabetes, suggests research published in the open access journal BMJ Medicine.

15 Mar 2023

Key steps for diagnosis and management of orthostatic tachycardia after COVID-19

A recent article discussed the prevalence, assessment, and practice pointers for the management of presentations of tachycardia among long COVID.

10 Mar 2023

How different stages of sleep affect the enhancement or impairment of emotional memories

In a recent study posted to the bioRxiv* preprint server, researchers investigated which stage of sleep is involved in emotional memory consolidation.

6 Mar 2023

The role of caffeine in preventing diabetic retinopathy

Moderate and high caffeine intake offered protection against the development of diabetic retinopathy.

5 Mar 2023

Adult smokers with mental illness top the charts in caffeine consumption

Americans are drinking more caffeinated beverages than ever before, but Rutgers researchers found one group that tops the charts in caffeine consumption: adult smokers with mental illness.

28 Feb 2023

Study finds high doses of oral CBD can exacerbate THC’s effects by inhibiting THC metabolism

Researchers compare the pharmacokinetics and pharmacodynamics of oral Δ9-tetrahydrocannabinol-dominant and cannabidiol-dominant cannabis extracts that contained the same Δ9-THC dose (20 mg).

24 Feb 2023

Nut consumption and its impact on human and environmental health

Researchers examine the impacts of nut consumption on human health and the environment.

16 Feb 2023

How are changes in coffee and caffeine intake associated with changes in fat tissue?

A recent study published in Clinical Nutrition evaluated the associations between changes in coffee and caffeine consumption and fat tissue changes.

14 Feb 2023

High doses of cannabidiol may increase the effects of THC in edible cannabis products

Contrary to some common claims, a study led by Johns Hopkins Medicine researchers found that relatively high doses of cannabidiol (CBD) may increase the adverse effects of delta-9-tetrahydrocannabinol (THC), the main active ingredient in cannabis that can cause a mood alteration or a "high" sensation.

13 Feb 2023