An experiment was performed to study the effects of colours on blood pressure. Colours like red and yellow caused the person's blood pressure to rise. Soothing colours like blue and green and neutral colours like white and black did not show any significant effect on blood pressure. This shows how the colour in our surroundings can have a significant effect on our moods and health. This field of study can be useful in the healthcare industry, where colours can be potentially used to create different moods.

A study conducted by Wellesley College researchers, Stoughton and Bevil Conway associated neural processes to colour. The study found that "globs" in the brains of monkeys reacted differently to coloured stimuli and responded based on colour. The brain was most triggered by specific colours such as red, green, blue and colours with most saturation. What this tells us is that these colours immediately create an impact on the viewer and attract attention. These findings are significant to help the creative communities and marketing and advertising agencies.

Heliodor
The name heliodor is derived from two Greek words, elios, which means "sun," and doron, which means "gift." They combine as "gift from the sun." This gemstone is a name used by mineralogists and gemologists for specimens of the mineral beryl with a yellow, greenish yellow or golden-yellow colour. Pure beryl is colourless, but impurities within the mineral cause beryl to occur in a variety of different colours. The yellowish colours of heliodor are usually caused by small amounts of iron within the mineral's crystal structure. It is a crystal of golden light, radiating the warmth and power of the sun.

Sodalite
Take a look at this beautiful gemstone known as Sodalite. It is a rich, royal blue mineral used as an ornamental gemstone. It resonates with the blue crystal that is known to stimulate the throat chakra. It encourages objectivity, rational thought, truth and intuition. Sodalite brings emotional balance. It improves self-acceptance, self-esteem and self-trust. Sodalite boosts metabolism and the immune system and it is said to help people with calcium deficiencies. The stone is also known to enhance communication. Don't confuse it with Lapis Lazuli, the more popular stone. It may be used as a substitute for that more precious gemstone.

Stork-billed Kingfisher
Take a look at this colourful bird. It is known as the Stork-billed kingfisher since the shape of its bill resembles that of a stork. The adult has a grey head, blue tail and wings and a green back. Its underparts and neck are buff. It has a large bill and legs that are bright red. The bird hunts fishes, crabs, frogs and rodents. Stork-billed kingfisher digs its nest in a river bank, decaying tree, or a tree termite nest. The call of this bird is low pitched yet far-reaching.

Blue Glaucus
This extraordinary looking sea creature is a sea slug known as blue glaucus. It is also known as the blue dragon. It is found throughout the Pacific, Atlantic and Indian Oceans in tropical and temperate waters. This species absorbs toxic chemicals or stinging cells from its prey into its own skin, acting as a defence mechanism. One side of its body is blue while the other side is silver. The blue side of its body faces upward to camouflage against the blue sea while its silver side faces downward. The blue glaucus is now an endangered species, on the verge of going extinct due to global warming and human intervention.