Gene Stratton-Porter's Biography. American feministâ photographerâ one of Indiana's most famous female authors. Stratton-Porter's moralistic and romantic novels have been translated among others into Finnish and Swedish. By the time of her deathâ her books sales had topped ten million copies.
That's roughly the amount of caffeine in four cups of brewed coffee, 10 cans of cola or two energy shot drinks. Although caffeine use may be safe for adults, it's not a good idea for children. And adolescents should limit themselves to no more than 100 mg of caffeine a day.Even among adults, heavy caffeine use can cause unpleasant side effects. And caffeine may not be a good choice for people who are highly sensitive to its effects or who take certain medications.eavy daily caffeine use â more than 500 to 600 mg a day â may cause side effects such as: 1  Insomnia. 2  Nervousness. 3  Restlessness. 4  Irritability. 5  Stomach upset. 6  Fast heartbeat. 7  Muscle tremors.
Caffeine (coffee, tea) and caffeinated items (such as energy drinks) - similar to the toxic chemical theobromide found in chocolate, caffeine can damage the heart, lungs, kidney and central nervous system. A lethal dose is considered to be around 70 mg per 1 lb body weight (150 mg / kg body weight). As an example, instant coffee contains over 60 mg caffeine per teaspoon. So, the lethal dose of caffeine for a 15 lb (6.8 kg) dog would be 17 teaspoons of instant coffee. Stronger coffees such as Turkish coffee, percolated coffees, and energy drinks would take much less to become toxic for a dog.