Depression in older adults

How depression presents in older adults

The DSM-5-TR criteria for major depressive disorder do not change with age. The presentation often does.

• Less reported sadness, more somatic complaints. Older adults more often present with fatigue, sleep problems, appetite loss, weight loss, vague pain, or constipation than with stated low mood.
• Cognitive symptoms are prominent. Slowed thinking, difficulty concentrating, and forgetfulness can dominate. The pattern is sometimes called pseudodementia, although that term is going out of use.
• Loss of interest and withdrawal can be misread as natural slowing in retirement.
• Anxiety and irritability are common, sometimes more visible than depression itself.
• Hopelessness and feeling like a burden are core features and major drivers of suicide risk in this age group.

Depression versus dementia

Depression and dementia overlap and can co-occur. A few patterns help differentiate them.

• Onset. Depression often comes on over weeks to a few months. Dementia usually comes on over years.
• Insight. People with depression often complain bitterly about memory and effort. People with early dementia often minimize problems that are obvious to family.
• Effort on testing. In depression, "I do not know" is a common answer and effort can be poor. In dementia, the person tries and produces wrong answers.
• Sleep and appetite. Severe sleep disruption and appetite loss are more typical of depression.
• Course with treatment. Depression-related cognitive symptoms usually improve substantially when the depression is treated. Dementia does not.

Depression in late life also raises the risk of later dementia. Whether depression is an early symptom, a contributor, or a parallel process is still being worked out. The practical point is that recognizing and treating depression is worth doing in its own right.

Medical contributors to rule out

Several medical conditions and medications produce depression-like symptoms more often in older adults. A first-time evaluation should include a careful review of the following:

• Thyroid disease, especially hypothyroidism.
• Vitamin B12 deficiency, common in older adults and a frequent contributor to fatigue and cognitive symptoms.
• Vitamin D deficiency.
• Anemia.
• Untreated sleep apnea.
• Stroke (including small vessel disease), Parkinson disease, and other neurodegenerative conditions.
• Chronic pain and chronic illness in general.
• Polypharmacy. Beta-blockers, corticosteroids, opioids, benzodiazepines, anticonvulsants, and several others can contribute. Reviewing the medication list with a pharmacist or geriatrician is one of the most useful first moves.

Suicide risk in late life

Adults aged 75 and older have the highest suicide rate of any age group in the United States, about 21 per 100,000 (CDC, 2022 final data). Older men, especially older white men, account for the bulk of late-life suicides. Several factors compound: physical illness, chronic pain, social isolation, recent bereavement, access to firearms, and the fact that older adults plan more carefully and use more lethal means.

About half of older adults who die by suicide were seen by a primary care clinician in the month before death. The opportunity to ask, screen, and intervene is real. Direct questions about suicidal thoughts do not plant the idea and remain the standard of care.

If you may be in danger, call or text 988 in the United States, call 911, or go to the nearest emergency department. See crisis resources.

Treatment

The treatments that work in younger adults work in older adults, with adjustments.

• Psychotherapy. CBT, problem-solving therapy, and behavioral activation have the strongest evidence in this age group. Interpersonal therapy is particularly useful for grief and role transitions, both common in late life. Telehealth therapy works as well as in-person therapy and removes transportation barriers.
• Antidepressants. SSRIs (sertraline, escitalopram) are usually first-line. Mirtazapine is often chosen when sleep loss and weight loss are prominent. Bupropion is an option when fatigue and low motivation dominate. Tricyclics and paroxetine are usually avoided because of anticholinergic side effects, falls, and cardiac risk. Start low, go slow, but reach a therapeutic dose. A common mistake is stopping too early or never reaching a therapeutic dose.
• Time to response is often longer in older adults. Eight to twelve weeks at a therapeutic dose is a reasonable trial.
• Combination treatment (medication plus psychotherapy) outperforms either alone for moderate to severe late-life depression.
• ECT remains the most effective treatment for severe late-life depression, particularly with psychotic features, catatonia, or active suicidality. It is well tolerated in this age group when the team is experienced.
• Lifestyle. Regular movement, social contact, sleep regularity, and adequate light exposure all help. Group activities and structured volunteering have evidence specific to late life.

How to support an older adult you are worried about

The general principles of supporting someone with depression apply. A few specific notes for late life:

• Frame the visit as "let us check what is going on" rather than "you need a psychiatrist." Most older adults are more comfortable starting with a primary care clinician.
• Offer to come along to appointments. The cognitive load of appointments while depressed is heavy.
• Watch for new social withdrawal, giving away possessions, or sudden interest in resolving affairs. These can be warning signs.
• Ask directly about firearms in the home. Off-site storage during a depressive episode is one of the strongest protective steps in this age group.
• Hearing loss, vision loss, and pain are amplifiers of late-life depression. Treating them is part of treating depression.