The opioid hypothesis is best described as an interpretation that guided a research programme, not a finding that programme established

Patients who have undergone gastric banding should be aware of the following signs that may indicate falling B12 levels and warrant prompt blood testing: Neurological symptoms: Tingling, numbness, or 'pins and needles' in the hands or feet Difficulty with balance or coordination Memory problems, difficulty concentrating, or 'brain fog' Mood changes, including low mood or irritability Haematological symptoms: Persistent fatigue or weakness disproportionate to activity levels Breathlessness on mild exertion Pallor or a slightly yellowish tinge to the skin Other indicators: A sore, smooth, or inflamed tongue (glossitis) Mouth ulcers occurring frequently It is important to recognise that some of these symptoms particularly fatigue and low mood are non-specific and may overlap with other post-operative nutritional deficiencies, such as iron or vitamin D deficiency
When searching the ingredients list of any given skin care product, by now you're probably used to seeing peptides in the mix
Since MTX induces oxidative stress by increasing reactive oxygen species in tissues (Reference Jahovic, Cevik and Sehirli38,Reference Moghadam, Tutunchi and Namvaran-Abbas-Abad40,Reference Olayinka, Ore and Adeyemo43) , the effects of various antioxidant substances against MTX-induced oxidative stress have been investigated (Reference Savran, Cicek and Doguc7,Reference Jahovic, Cevik and Sehirli38,Reference Olayinka, Ore and Adeyemo43Reference Yuksel, Yuksel and Yagmurca45)