Astaxanthin is a reddish pigment that belongs to a group of chemicals called carotenoids. It occurs naturally in certain algae and causes the pink or red color in salmon, trout, lobster, shrimp, and other seafood. Indigestion (dyspepsia). 2  Early research shows that taking astaxanthin daily for 4 weeks does not reduce stomach pain, indigestion or the amount of bacteria (H. pylori) in the stomach that may cause stomach pain.
James-Lange Theory of Emotion was posed by both James and Lang at approximately the same time (hence the name James-Lange) and suggests emotions are a consequence of our physiological responses to external stimuli followed by identification of the emotion by examining the physical responses.
In order to compare and contrast these theories of emotion, it is helpful to first explain them in terms of the interactions between their components: an emotion-arousing stimulus, physiological arousal, cognitive appraisal, and the subjective experience of emotion. According to the James-Lange theory, initially proposed by James and around the same time also by Lange, the stimulus leads to the arousal that leads to the emotion.