Polypharmacy and Anticholinergic Drugs Linked to Accelerated Biological Aging

A new study examined how polypharmacy—taking multiple medications simultaneously—affects biological aging in older adults. Researchers found that higher anticholinergic burden (the cumulative effect of drugs that block acetylcholine, a key neurotransmitter) was associated with accelerated biological aging markers and increased inflammation. This matters because anticholinergic drugs are commonly prescribed to older adults for conditions like allergies, depression, and bladder control, often without full awareness of their cumulative effects. The findings suggest that medication regimens should be carefully reviewed to minimize anticholinergic load where possible. While the study establishes correlation rather than causation, it adds to growing evidence that the sheer number and type of medications older adults take may independently contribute to aging processes beyond their intended therapeutic effects. For practitioners and patients alike, this underscores the importance of regular medication reviews and deprescribing unnecessary drugs, particularly those with anticholinergic properties. The work provides a measurable link between a modifiable clinical factor and biological aging.