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Fitzpatrick Skin Types and IGH The Fitzpatrick skin type classification categorizes skin based on response to UV exposure: Type I-II (Very fair to fair skin): Burns easily, tans minimally White spots very common with age High contrast between spots and surrounding skin when tanned Earlier onset of visible spots Higher overall risk of sun damage Type III-IV (Medium to olive skin): Tans gradually, burns moderately IGH still common but may develop slightly later Spots noticeable against tanned skin Good contrast makes spots visible Type V-VI (Brown to dark brown/black skin): Tans easily, rarely burns IGH can occur but may be less noticeable Significant contrast between spots and natural skin tone Other pigmentation disorders may be more common concern Cultural and Geographic Considerations Sun exposure patterns: Outdoor occupations and lifestyles increase risk regardless of ethnicity Cultural attitudes toward tanning affect prevention behaviors Geographic location influences cumulative UV exposure Access to sun protection varies globally Perception and concern: Cosmetic concerns vary across cultures Some cultures place more emphasis on even skin tone Treatment-seeking behavior differs by cultural context Special Considerations for Skin of Color Individuals with darker skin tones face unique considerations: Advantages: Natural melanin provides some UV protection May experience delayed onset of visible sun damage Lower overall skin cancer risk (though still present) Challenges: Post-inflammatory hyperpigmentation more common Other pigmentation disorders (melasma, etc.) may be primary concern Limited representation in dermatological research Some treatments carry higher risk of pigmentation changes Recommendations: Sun protection still essential despite natural melanin Seek dermatologists experienced with skin of color Be aware that IGH can occur in all skin types Monitor for any pigmentation changes When White Spots Signal Something More Serious While the vast majority of white spots on skin after sun are harmless IGH, certain warning signs warrant immediate medical evaluation to rule out more serious conditions
30 in JAMA Ophthalmology
A study in rats found that liraglutide (a similar GLP-1 medication) reduced wakefulness and altered sleep patterns
Adding B12 does not change the weight loss number itself
The NRF2, thioredoxin, and glutathione system in tumorigenesis and anticancer therapies
Tsapas A, Karagiannis T, Kakotrichi P et al (2021) Comparative efficacy of glucose-lowering medications on body weight and blood pressure in patients with type 2 diabetes: a systematic review and network meta-analysis
