Traits - Caffeine and anxiety

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Caffeine and anxiety

Body Composition

This research area looks at how individual differences in caffeine response can affect feelings of jitteriness, restlessness, or anxiety after consuming caffeinated drinks.

Variants in genes that affect caffeine metabolism (such as CYP1A2) and adenosine receptor signaling (ADORA2A) have been linked to differences in how strongly caffeine produces alerting and anxiety-like effects.

This result reflects research-level variation in caffeine sensitivity and is not a diagnosis of an anxiety disorder or a recommended caffeine limit.

Sleep, dose, time of day, tolerance, other stimulants, hydration, and underlying mood state also shape how caffeine feels in practice.

Selected sample
Demo Report
Report markers
3 SNP entries
Genes
1
Research
1 study
Your report

Genetic tendency

Average odds of anxiety levels after moderate caffeine cosumption

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Behind this report

Review the genes, tested markers and supporting research.

Genes analyzed

Gene summaries include genomic locations and associated markers. A detected genotype does not by itself indicate a health condition.

Understanding the data
SNP
A specific genetic marker relevant to this trait.
Genotype
The DNA letters reported at a marker location.
Variant allele
The alternative DNA sequence at the SNP site.
Variant allele frequency
The reported percentage of the reference population carrying this variant.
Variant found
Whether the variant was detected in your DNA file.

1 of 1 genes have detected genotypes.

ADORA2A

This gene encodes a member of the guanine nucleotide-binding protein (G protein)-coupled receptor (GPCR) superfamily, which is subdivided into classes and subtypes. The receptors are seven-pass transmembrane proteins that respond to extracellular cues and activate intracellular signal transduction pathways. This protein, an adenosine receptor of A2A subtype, uses adenosine as the preferred endogenous agonist and preferentially interacts with the G(s) and G(olf) family of G proteins to increase intracellular cAMP levels. It plays an important role in many biological functions, such as cardiac rhythm and circulation, cerebral and renal blood flow, immune function, pain regulation, and sleep. It has been implicated in pathophysiological conditions such as inflammatory diseases and neurodegenerative disorders. Alternative splicing results in multiple transcript variants. A read-through transcript composed of the upstream SPECC1L (sperm antigen with calponin homology and coiled-coil domains 1-like) and ADORA2A (adenosine A2a receptor) gene sequence has been identified, but it is thought to be non-coding. [provided by RefSeq, Jun 2013]

GeneCards
Chromosome
22
Start
24,417,879
End
24,442,357
Build
HG19
Associated SNPs 1 / 1 detected
Associated markers for ADORA2A
SNPGenotype Ref. alleleVariant alleleFrequencyStatus
rs5751876 CT TC44.23%Detected

SNPs tested

These are the unique genetic markers analyzed for this trait. Genotypes showing "--" were not identified in your DNA file. Report marker totals can include repeated study entries; this table shows each SNP once.

Genotypes and reported variant frequencies
SNPChromosomeGenotypeVariant alleleFrequency
rs575187622CTC44.23%

DNA Genics reports genotypes based on the 'positive' strand of the human genome reference sequence (build 37/HG19). Other companies may use the opposite strand, so genotypes may need conversion for comparison.

Research studies

The following peer-reviewed scientific studies support the genetic associations analyzed in this report.

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Coverage: 3/3 SNP entries detected (100%).

Reference: Human Genome Build 37 (HG19). Other testing companies may report using the opposite strand, requiring conversion for comparison.

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SAMPLE REPORT Example DNA profile This is a sample report with example data. It is not your personal report, and the results do not describe you.
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