GRATITUDE IS GOOD MEDICINE

Concrete Made with Rubber Refuse

Concrete consists of water, cement and an aggregate such as sand or gravel. The aggregate has to be mined from the ground, and is now in short supply in many parts of the world, while discarded tires can be partially recycled, but are often burned or relegated to landfills.

Attempts to replace some of the aggregate used in concrete with crumbled, used tires has been stymied by a bonding problem because pores in the rubber fill with water when the concrete is first mixed, and become empty holes as the water evaporates and the concrete sets.

As reported in the journal Resources, Conservation & Recycling, scientists at Australia’s RMIT University have produced good-quality concrete in which all of the aggregate has been replaced with tire particles. They started with wet concrete in which all the aggregate is comprised of tire particles, then placed it in special steel molds as it set to place pressure on the concrete, compressing the particles and the pores within.

Once the concrete dried and set, the cement had bonded much better to the tire particles. When compared to previous 100-percent tireaggregate concrete produced by conventional means, the preloaded concrete exhibited 97 percent, 59 percent and 20 percent increases in compressive, flexural and tensile strength, respectively.

Gratitude is Good Medicine

by Madiha Saeed

Tinnakorn/AdobeStock.com

Stress, work and family routines can trap us in a pattern of negative thinking that feeds on itself and creates stress and unhappiness. With our internal and external worlds being bombarded these days with negativity, being optimistic is more important now than ever before.

Gratitude is not just a feel-good word. It is an emotion expressing appreciation for what one has—a universal concept in nearly all of the world’s spiritual traditions. Practicing gratitude daily is proven to have actual physiological consequences. It helps lower inflammatory markers, influences epigenetics, improves the immune system and even helps the heart, adding years to life.

Optimism has been found to correlate positively with life satisfaction and self-esteem. “Heartfelt” emotions like gratitude, love and caring produce coherent brain waves radiating to every cell of the body, as shown by technology that measures changes in heart rhythm variation and coherence.

Our subconscious governs 90 percent of our thoughts and actions. It shapes our every behavior. But the subconscious mind is nothing other than neural pathways that have been established in the brain as a result of past beliefs and conditioning. Our subconscious does no thinking of its own, but rather relies on our perception of the world around us, interpreting verbal and nonverbal cues.

When we consciously turn negativity to positivity from the inside-out, the neural pathway associated with negativity will take time to come down fully, so it is critical to practice gratitude regularly. Upon waking in the morning, say 10 things that you are grateful for. Keep a gratitude journal. Put sticky notes all over the house with gratitude messages—on photos, light fixtures, fans, exercise equipment—to create a zone of subliminal positivity.

Remember that our perspective can reflect either our pain or our power. That choice is in our hands. Know what you are grateful for each day.

Madiha Saeed, M.D., ABIHM, is the bestselling author of The Holistic RX, an international speaker, founder of HolisticMomMD.com and director of education for KnoWEwell.