The Science of Sanctuary
Published studies on nature, respite, and social connection, with a link to each one.
How We Use This Research
We use these studies when we plan trails, programs, and plantings. Here is how they show up at Rest-Stop-Ranch.
How We Apply the Science:
- Accessible Trails: A survey of park visitors with mobility disabilities found that slopes and rough pavement are among the main obstacles keeping them from nature. Our gardens have 0.5 mile of flat, wheelchair-accessible trails, with benches for sitting and watching as well as paths to walk or roll.
- Caregiver Respite: The National Institute on Aging describes respite care as short-term relief that lets caregivers take a break. Our programs give caregivers a few free hours away from the demands of care.
- Memory and Mood: Studies of Memory Cafés and horticultural therapy report less isolation and better mood for people with dementia and their carers. Our Memory Café and garden programs build on that.
Therapeutic Horticulture & Nature
Horticultural Therapy & Dementia
A review of 15 studies (Nursing Standard, 2016) finding that horticultural therapy can benefit the emotional health, sense of self, and engagement of people living with dementia.
Nature Rehab & Return to Work
A study of 106 people recovering from severe stress or depression in a rehabilitation garden in Sweden. After a year, 68% had returned to work or job training, and those with longer rehabilitation were more likely to be in paid work.
HT Impact on Dementia
A 10-week study of 51 people with dementia in adult day care and a retirement community, which observed better mood, communication, and function during horticultural therapy than during other activities (BMC Geriatrics, 2024).
HT for Depression & Anxiety
A controlled study of 36 women aged 40 to 59 finding that a 12-session horticultural therapy program significantly lowered depression and anxiety scores and raised self-identity scores.
Therapeutic Gardening Trial
A trial at 10 sites in Korea of a 30-session gardening program, with improvements in depression, anxiety, daily activity, and quality of life.
HT for Elderly Depression
A systematic review and meta-analysis of 13 studies finding that horticultural therapy significantly reduces depressive symptoms in older adults, with larger effects in those aged 75 and over.
Green Space, Stress & Blood Pressure
A systematic review and meta-analysis of 143 studies (Twohig-Bennett and Jones, Environmental Research, 2018) finding that time in green spaces is linked to lower salivary cortisol, a marker of stress, lower diastolic blood pressure, and lower heart rate.
A 20-Minute Nature Pill
A study of 36 city residents over eight weeks (Hunter, Gillespie and Chen, Frontiers in Psychology, 2019) finding that time in nature lowered cortisol, a stress hormone, with the greatest drop per minute between 20 and 30 minutes.
Caregiver Respite & Support
What Is Respite Care?
Official guidance from the National Institute on Aging (NIA) defining respite care as critical short-term relief that allows caregivers to take a necessary break from the ongoing demands of care.
Carer Benefits of Memory Cafés
A qualitative study in Western Australia finding that Memory Cafés contribute significantly to carers’ well-being, giving them a place to share experiences, feel joy, and face less stigma.
Health Effects of Dementia Caregiving
A clinical review detailing the significant psychiatric and physical health risks faced by family caregivers, emphasizing the need for structured intervention strategies to reduce burden and improve quality of life.
Social Connection
HT for Community Dementia
A paper examining how horticultural therapy facilitates physical and psychological well-being and social integration for people with dementia living in the community, helping to counteract isolation.
Memory Café Environmental Scan
A comprehensive report detailing the core characteristics of Memory Cafés and summarizing their demonstrated benefits, such as reducing social isolation and acting as a “safe haven” for caregiver respite.
Mobility & Palliative Care
Mobility & Cognitive Impairment
A systematic review of 22 trials of outdoor mobility programs for people with disabilities. Most of the evidence was very uncertain, but one study suggested that skill training may help people with cognitive impairments get out of the house more in the short term.
Nature Access & Mobility Barriers
A survey in Canada and Spain of people with mobility disabilities, finding that slopes and pavement are among the main obstacles keeping them from enjoying national parks.
Nature for Mobility Impairments
A systematic review finding that people with mobility impairments can gain physical, mental, and social health benefits from nature, from viewing it to taking an active part. The authors rate the quality of the included studies as not high.
HT for Brain Injury Rehab
A clinical review of the Danderyd Hospital program in Sweden, detailing how horticultural therapy aids rehabilitation for patients with brain damage through sensory stimulation and cognitive re-organization.
Nature & Narrative in Hospice
A report on integrating biophilia and narrative medicine in palliative care to support patients’ spiritual needs and help clinicians mitigate burnout and “spiritual wounds.”