What is it?

Light therapy is a simple process in which a specific wavelength of light is projected onto the skin. The light causes chemical reactions in the target area

Pros:

mood, energy, focus, sleep, productivity, mental awareness, vitamin D synthesis, reduces dental decay, scholastic performance of students (SAD, jet lag, depression, dementia, sleep disorders, insomnia, ADHD) anti inflammatory (alopeca, Alzheimers, type two diabetes, obesity, psoriasis, arthritis, tendinitis)

Cons:

Eyestrain, Headache, Nausea, Irritability or agitation, Mania, euphoria, hyperactivity (Mayo Clinic - "Light therapy may trigger mania in some people with bipolar disorder")UV light can cause skin and eye damage aka skin cancer.The UV light released by tanning beds can damage your skin and greatly increase your risk of skin cancer (Mayo Clinic)

Types:

Red or infared affects edipemus or skin - Improves collegan production, influences mitochondia for celluar repair, healing & repair tissues, Increases Circulation, Recovery & muscle repair, increased circulation, improved oxygen to cells, vision, protecting cells from damage, reducing wrinkles, wound healing, bone recovery, reducing pain, anti imflamatory (alopeca, alzhimers, type two diabetes, obesity, psorasis, arthritis, tendonitis)

blue affects circadian rhythm - sleep, hormones, oil glands, anti bacterial, kills bacterial/fugus - acne, promotes anti-inflammation effects, decreases scarring, caution of skin cancer with skin moles, affecting sleep if done at night, not recommended for babies/infants, eye damage

green affect soothing and calming both physically and mentally, regulates melanin production - pain and migraines, calm anxiety, accelerate the sleep process and rejuvenate skin, antiseptic properties and can detoxify the body, relieves tension in the blood vessels and lowers blood pressure, nervous system as a sedative and is helpful in sleeplessness, exhaustion and irritability, anti aging, anti inflammatory, decrease stress and helps with grief

UV - skin damaging causes cancer, Orange - improves scars and aging spots, more energy ATP, decreases inflammation, better mental clarity, yellow - inflammation reduction, stimulates lymphocyte production, activates toxin elimination, helps to heal psoriasis and eczema, reduces redness from rosacea, UV radiation damage, lymphatic drainage, cellular growth, improve digestion

Violet/Purple - inflammation reduction, increases cell regeneration, improves skin and scarring, energizes mind

White - energizes, improves concentration/focus, improves collegen, decreases pain/inflammation, decrease depression, decreases jet lag, decreases drowsiness

Cyan - calms/soothes skin irritations, reduces swollen capillaries

LEDs do not contain ultraviolet rays

Dawn Simulators, Light box, Natural spectrum light bulbs, Bluewave technology, Bright Light Sun Visors, A Light on a Timer, glasses

Recommendations:

Intensity. For SAD, the typical recommendation is to use a 10,000-lux light box at a distance of about 16 to 24 inches (41 to 61 centimeters) from your face. 20-30min.

Duration. 20 to 30 minutes.

Timing. Blue & Green Morning (circadian rhythm - sleep, hormones), Red a night before bed (Calm, relax, fire caveman) 20-30min.

Tips:

Winter time daily

https://www.verywellmind.com/best-light-therapy-lamps-4172537