Glossary — Understanding Dependency, ADLs & Key Terms

The Six Activities of Daily Living

Activities of Daily Living, or ADLs, are the fundamental self-care tasks clinicians, insurers, and care managers use to measure functional independence. Most long-term care insurance policies and public benefit programs use the inability to perform two or more ADLs without help as the standard for benefit eligibility.

Bathing

The ability to wash oneself in a tub, shower, or by sponge bath, including getting in and out of the bathing area safely. Bathing is typically the first ADL to require assistance as a condition progresses, often due to balance limitations, joint pain, or fear of falling.

Dressing

The ability to select appropriate clothing and to put it on and take it off, including managing buttons, zippers, and fasteners. Conditions affecting fine motor control — arthritis, Parkinson's, stroke — often impair dressing well before other ADLs.

Toileting

The ability to get to and from the toilet, get on and off it, and perform associated personal hygiene. This ADL is closely tied to mobility and is one of the most emotionally sensitive areas of caregiving for both patients and family members.

Transferring

The ability to move between a bed and a chair, or in and out of a chair, without assistance. Loss of transferring ability is one of the clearest signals that a family needs professional caregiving support, equipment (a transfer bench or lift), or a higher level of care.

Continence

The ability to control bladder and bowel function. When continence is lost, it is often described by caregivers as one of the most difficult transitions to manage practically and emotionally, and is a common trigger for residential care conversations.

Eating

The ability to feed oneself, though not necessarily to prepare food. Difficulty eating can stem from physical limitations (tremor, weakness), swallowing problems, or cognitive impairment that affects recognizing hunger or using utensils.

Additional Key Terms

Activities of Daily Living (ADLs): The six fundamental self-care tasks — bathing, dressing, toileting, transferring, continence, and eating — used across medicine, insurance, and long-term care to measure a person's functional independence. Most long-term care insurance policies and Medicaid programs use the number of ADLs a person cannot perform without help as the trigger for benefit eligibility.
Instrumental Activities of Daily Living (IADLs): A second tier of more complex tasks required to live independently in a community, including managing finances, preparing meals, managing medications, using the telephone, shopping, housekeeping, and transportation. IADL loss frequently precedes ADL loss and is often the first sign a family notices.
Custodial Care: Non-skilled care that helps a person with ADLs and daily needs — bathing, dressing, meal preparation, supervision — that does not require a licensed medical professional to perform. This is the type of care most people eventually need for the longest period of time, and it is generally not covered by Medicare.
Skilled Care: Medical care that must be provided or supervised by licensed professionals such as registered nurses or physical therapists — for example, wound care, injections, or physical therapy following surgery. Medicare covers skilled care under specific, time-limited conditions.
Long-Term Care (LTC): A range of services — including custodial and some skilled care — provided over an extended period to people who need ongoing help with ADLs or IADLs due to chronic illness, disability, or cognitive impairment. Long-term care can be delivered at home, in an assisted living community, or in a nursing home.
Activities of Daily Living Trigger / ADL Trigger: The specific standard, usually defined as the inability to perform two or more of the six ADLs without substantial assistance, or the presence of severe cognitive impairment, that determines eligibility for benefits under most long-term care insurance policies and some public programs.
Cognitive Impairment: A measurable decline in memory, reasoning, orientation, judgment, or other intellectual functions, ranging from Mild Cognitive Impairment (MCI) to dementia. Cognitive impairment can trigger long-term care benefit eligibility even when a person retains physical ability to perform ADLs, because judgment and safety awareness are also required for genuine independence.
Activities of Daily Living Assessment: A structured evaluation, often performed by a nurse, occupational therapist, or care manager, that determines which ADLs a person can perform independently, which require some assistance ('hands-on' or 'stand-by' assistance), and which the person cannot perform at all.
Respite Care: Short-term, temporary care provided to give a family caregiver a planned break — ranging from a few hours to several weeks — delivered at home, through an adult day program, or in a residential facility. Respite care is widely underused relative to its documented benefit in preventing caregiver burnout.
Caregiver Burden: The physical, emotional, financial, and social strain experienced by an unpaid family member or friend providing ongoing care. Caregiver burden is measurable using validated tools such as the Zarit Burden Interview and is strongly associated with the caregiver's own increased risk of depression, chronic illness, and — in some studies — earlier mortality.
Activities of Daily Living Cascade / Dependency Cascade: The typically sequential pattern in which loss of one functional ability leads to loss of others — for example, reduced mobility leading to falls, which lead to fractures, which lead to hospitalization, which leads to further deconditioning and a lower functional baseline than before the fall.
Care Transition: A change in the setting or intensity of care a person receives — for example, from independent living to home health aide support, from home to assisted living, or from assisted living to a skilled nursing facility. Care transitions are frequently identified by families and clinicians as the most stressful decision points in a long-term care journey.
Activities of Daily Living Coverage Gap: The common situation in which a person needs help with ADLs (custodial care) but does not qualify for Medicare coverage, which is generally limited to skilled care. This gap is one of the central financial realities discussed throughout this series.
Advance Directive: A legal document specifying a person's wishes for future medical care, used if they become unable to communicate those wishes themselves. Advance directives are most useful when completed before a cognitive or medical crisis, while the person can still participate fully in the decision.
Durable Power of Attorney (POA): A legal document authorizing a trusted person to make financial or healthcare decisions on someone's behalf if they become incapacitated. A 'durable' POA remains in effect even after incapacity, which is what distinguishes it from a standard power of attorney.
Activities of Daily Living Independence: The overarching goal of most long-term care planning and clinical intervention: preserving a person's ability to perform ADLs without assistance for as long as safely possible, through prevention, early diagnosis, rehabilitation, and appropriate support.