They may be consumed up to the use by date. Unopened deli meats generally keep for two weeks. However, once the package is opened, the use by date is meaningless; the meat should be consumed within 3-5 days. This is because anti-oxidative gases that preserve pre-packaged deli meats escape from the packaging once it is opened. Unopened packaged deli meat can be frozen for one to two months.
Chest soreness that is caused by working out used to be attributed largely to the buildup of lactic acid, which is a waste product created by the muscles when strained.
Angina. Angina is a kind of chest pain that can feel like a heaviness or tightness. It is a symptom rather than a condition and it has many causes which include heart attack but also high blood pressure, arterial plaque, spasm of the esophagus, inflammation of the chest wall and more.f course however chest heaviness does not necessarily mean that you are suffering from a heart attack and there are many other causes that could be contributing to the feeling of a heavy chest. Here we will look at some of the various causes of chest heaviness and what might be causing them.