A citrus fruit Citrus sinensis which is a hybrid of ancient cultivated origin, possibly between the pomelo–Citrus maximaand the tangerine–C reticulata. The fruit is rich in vitamin C and classified as a hesperidium, a type of berry.
Citrus sinensis is a small flowering tree that grows no taller than 10 m, and has evergreen leaves.
A colour between red and yellow in the visible spectrum which has a wavelength interval of 635 nm to 590 nm and a frequency interval of 480 to 510 THz
A colour said, in the construct of the pseudoscience of colour therapy, to combine the healing powers of red and yellow light.
Orange is believed–by colour “therapists”–to stimulate the thyroid, lungs, and circulation, integrate mental and physical energy, and promote a sense of well-being; orange colour therapy is claimed to be useful for gout, rheumatism, and tumours. There are no peer-reviewed studies to even vaguely suggest that colour therapy provides any form of health benefit.